KASAN: use-after-free Read in bpf_prog_kallsyms_find
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syzbot
Jan 2, 2019, 5:31:06 AM1/2/19
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 8b6b25cf93b7 selftests/bpf: fix error printing in test_dev..
git tree: bpf
console output: https://syzkaller.appspot.com/x/log.txt?x=14b24ee7400000
kernel config: https://syzkaller.appspot.com/x/.config?x=b6c41ffa3d657353
dashboard link: https://syzkaller.appspot.com/bug?extid=ab26bd806520f46b5390
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
CC: [a...@kernel.org dan...@iogearbox.net
linux-...@vger.kernel.org net...@vger.kernel.org net...@vger.kernel.org]
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+ab26bd...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: use-after-free in bpf_tree_comp kernel/bpf/core.c:557 [inline]
BUG: KASAN: use-after-free in __lt_find include/linux/rbtree_latch.h:115
[inline]
BUG: KASAN: use-after-free in latch_tree_find
include/linux/rbtree_latch.h:208 [inline]
BUG: KASAN: use-after-free in bpf_prog_kallsyms_find kernel/bpf/core.c:631
[inline]
BUG: KASAN: use-after-free in bpf_prog_kallsyms_find+0x40a/0x4b0
kernel/bpf/core.c:624
Read of size 8 at addr ffff88808f3cf648 by task syz-executor4/10856
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
print_address_description.cold+0x7c/0x20d mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report mm/kasan/report.c:412 [inline]
kasan_report.cold+0x8c/0x2ba mm/kasan/report.c:396
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
bpf_tree_comp kernel/bpf/core.c:557 [inline]
__lt_find include/linux/rbtree_latch.h:115 [inline]
latch_tree_find include/linux/rbtree_latch.h:208 [inline]
bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
bpf_prog_kallsyms_find+0x40a/0x4b0 kernel/bpf/core.c:624
is_bpf_text_address+0x78/0x170 kernel/bpf/core.c:666
kernel_text_address+0x73/0xf0 kernel/extable.c:152
__kernel_text_address+0xd/0x40 kernel/extable.c:107
unwind_get_return_address arch/x86/kernel/unwind_frame.c:18 [inline]
unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:13
__save_stack_trace+0x8a/0xf0 arch/x86/kernel/stacktrace.c:45
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991dc10 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991dd38 R08: ffff8880977b23c0 R09: ffffed1015ce5b90
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#2] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991d518 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991d640 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d323b8a R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#3] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991ce18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991cf40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d323aab R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#4] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991c718 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991c840 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3239cb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#5] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991c018 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991c140 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3238eb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#6] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991b918 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991ba40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32380b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#7] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991b218 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991b340 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32372b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#8] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991ab18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991ac40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32364b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#9] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991a418 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991a540 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32356b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#10] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069919d18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069919e40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32348b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#11] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069919618 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069919740 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3233ab R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#12] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069918f18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069919040 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3232cb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#13] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069918818 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069918940 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3231eb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#14] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069918118 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069918240 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32310b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#15] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069917a18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069917b40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32302b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#16] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069917318 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069917440 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#17] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069916c18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069916d40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
CR2: ffffc90001937030
---[ end trace 06927ab7f7327195 ]---
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991dc10 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991dd38 R08: ffff8880977b23c0 R09: ffffed1015ce5b90
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
syzbot.
syzbot found the following crash on:
HEAD commit: 8b6b25cf93b7 selftests/bpf: fix error printing in test_dev..
git tree: bpf
console output: https://syzkaller.appspot.com/x/log.txt?x=14b24ee7400000
kernel config: https://syzkaller.appspot.com/x/.config?x=b6c41ffa3d657353
dashboard link: https://syzkaller.appspot.com/bug?extid=ab26bd806520f46b5390
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
CC: [a...@kernel.org dan...@iogearbox.net
linux-...@vger.kernel.org net...@vger.kernel.org net...@vger.kernel.org]
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+ab26bd...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: use-after-free in bpf_tree_comp kernel/bpf/core.c:557 [inline]
BUG: KASAN: use-after-free in __lt_find include/linux/rbtree_latch.h:115
[inline]
BUG: KASAN: use-after-free in latch_tree_find
include/linux/rbtree_latch.h:208 [inline]
BUG: KASAN: use-after-free in bpf_prog_kallsyms_find kernel/bpf/core.c:631
[inline]
BUG: KASAN: use-after-free in bpf_prog_kallsyms_find+0x40a/0x4b0
kernel/bpf/core.c:624
Read of size 8 at addr ffff88808f3cf648 by task syz-executor4/10856
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
print_address_description.cold+0x7c/0x20d mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report mm/kasan/report.c:412 [inline]
kasan_report.cold+0x8c/0x2ba mm/kasan/report.c:396
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
bpf_tree_comp kernel/bpf/core.c:557 [inline]
__lt_find include/linux/rbtree_latch.h:115 [inline]
latch_tree_find include/linux/rbtree_latch.h:208 [inline]
bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
bpf_prog_kallsyms_find+0x40a/0x4b0 kernel/bpf/core.c:624
is_bpf_text_address+0x78/0x170 kernel/bpf/core.c:666
kernel_text_address+0x73/0xf0 kernel/extable.c:152
__kernel_text_address+0xd/0x40 kernel/extable.c:107
unwind_get_return_address arch/x86/kernel/unwind_frame.c:18 [inline]
unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:13
__save_stack_trace+0x8a/0xf0 arch/x86/kernel/stacktrace.c:45
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991dc10 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991dd38 R08: ffff8880977b23c0 R09: ffffed1015ce5b90
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#2] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991d518 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991d640 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d323b8a R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#3] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991ce18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991cf40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d323aab R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#4] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991c718 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991c840 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3239cb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#5] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991c018 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991c140 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3238eb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#6] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991b918 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991ba40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32380b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#7] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991b218 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991b340 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32372b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#8] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991ab18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991ac40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32364b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#9] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991a418 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991a540 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32356b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#10] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069919d18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069919e40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32348b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#11] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069919618 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069919740 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3233ab R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Oops: 0000 [#12] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069918f18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069919040 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3232cb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#13] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069918818 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069918940 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d3231eb R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#14] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069918118 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069918240 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32310b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#15] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069917a18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069917b40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 1ffff1100d32302b R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#16] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069917318 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069917440 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001937030
#PF error: [normal kernel read fault]
PGD 12c239067 P4D 12c239067 PUD 12c23a067 PMD 2199d5067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#17] PREEMPT SMP KASAN
CPU: 1 PID: 10856 Comm: syz-executor4 Not tainted 4.20.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff888069916c18 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff888069916d40 R08: ffff8880977b23c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
CR2: ffffc90001937030
---[ end trace 06927ab7f7327195 ]---
RIP: 0010:bpf_jit_binary_hdr include/linux/filter.h:712 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:488 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:557 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:631 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x274/0x4b0 kernel/bpf/core.c:624
Code: 03 42 80 3c 30 00 0f 85 af 01 00 00 49 8b 47 50 48 8d 78 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 b7 01 00 00 48 8d 78 02 <4c> 8b 60 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff88806991dc10 EFLAGS: 00010046
RAX: ffffc90001937000 RBX: ffff88808f3cf5f8 RCX: ffffffff818dad7a
RDX: 1ffff92000326e06 RSI: 0000000000000008 RDI: ffffc90001937002
RBP: ffff88806991dd38 R08: ffff8880977b23c0 R09: ffffed1015ce5b90
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: ffff88808f3cf5f8
FS: 00007fc04cbbd700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001937030 CR3: 00000000955a3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This bug is generated by a bot. It may contain errors.
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syzbot
Jul 31, 2019, 6:58:04 AM7/31/19
to syzkaller-upst...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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