general protection fault in bpf_skb_ancestor_cgroup_id
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syzbot
Jan 10, 2020, 11:44:10 PM1/10/20
to syzkaller-a...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: f5f770e4 ANDROID: Kconfig.gki: Add QCOM_SCM to QCOM Hidden..
git tree: android-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=15d94eaee00000
kernel config: https://syzkaller.appspot.com/x/.config?x=91fe4507c5782603
dashboard link: https://syzkaller.appspot.com/bug?extid=e48aa434db5743393fef
compiler: Android (6032204 based on r370808) clang version 10.0.1
(https://android.googlesource.com/toolchain/llvm-project
6e765c10313d15c02ab29977a82938f66742c3a9)
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+e48aa4...@syzkaller.appspotmail.com
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 24848 Comm: syz-executor.1 Not tainted
5.4.10-syzkaller-00217-gf5f770e495ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:cgroup_ancestor include/linux/cgroup.h:586 [inline]
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RSP: 0018:ffff88819e1ef530 EFLAGS: 00010203
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000002
RDX: ffffc90003f8b000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff88819e1ef558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
R10: fffffbfff0933d6d R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000fff R15: ffff8881c7976812
FS: 00007f714a5e1700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32521000 CR3: 00000001cd720004 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_prog_4b8778e422fd6c39+0x4cf/0x1000
bpf_call_func include/linux/filter.h:608 [inline]
bpf_test_run+0x2c0/0x6a0 net/bpf/test_run.c:44
bpf_prog_test_run_skb+0x7a6/0x10e0 net/bpf/test_run.c:310
bpf_prog_test_run kernel/bpf/syscall.c:2120 [inline]
__do_sys_bpf+0x31e8/0xbbc0 kernel/bpf/syscall.c:2896
__se_sys_bpf kernel/bpf/syscall.c:2837 [inline]
__x64_sys_bpf+0x7a/0x90 kernel/bpf/syscall.c:2837
do_syscall_64+0xc0/0x100 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45af49
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f714a5e0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49
RDX: 0000000000000040 RSI: 0000000020000280 RDI: 000000000000000a
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f714a5e16d4
R13: 00000000004c15ad R14: 00000000004d6420 R15: 00000000ffffffff
Modules linked in:
---[ end trace 35746a3e6cfb94cc ]---
RIP: 0010:cgroup_ancestor include/linux/cgroup.h:586 [inline]
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RSP: 0018:ffff88819e1ef530 EFLAGS: 00010203
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000002
RDX: ffffc90003f8b000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff88819e1ef558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
R10: fffffbfff0933d6d R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000fff R15: ffff8881c7976812
FS: 00007f714a5e1700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32521000 CR3: 00000001cd720004 CR4: 00000000001606e0
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#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: f5f770e4 ANDROID: Kconfig.gki: Add QCOM_SCM to QCOM Hidden..
git tree: android-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=15d94eaee00000
kernel config: https://syzkaller.appspot.com/x/.config?x=91fe4507c5782603
dashboard link: https://syzkaller.appspot.com/bug?extid=e48aa434db5743393fef
compiler: Android (6032204 based on r370808) clang version 10.0.1
(https://android.googlesource.com/toolchain/llvm-project
6e765c10313d15c02ab29977a82938f66742c3a9)
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+e48aa4...@syzkaller.appspotmail.com
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 24848 Comm: syz-executor.1 Not tainted
5.4.10-syzkaller-00217-gf5f770e495ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:cgroup_ancestor include/linux/cgroup.h:586 [inline]
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RSP: 0018:ffff88819e1ef530 EFLAGS: 00010203
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000002
RDX: ffffc90003f8b000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff88819e1ef558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
R10: fffffbfff0933d6d R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000fff R15: ffff8881c7976812
FS: 00007f714a5e1700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32521000 CR3: 00000001cd720004 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_prog_4b8778e422fd6c39+0x4cf/0x1000
bpf_call_func include/linux/filter.h:608 [inline]
bpf_test_run+0x2c0/0x6a0 net/bpf/test_run.c:44
bpf_prog_test_run_skb+0x7a6/0x10e0 net/bpf/test_run.c:310
bpf_prog_test_run kernel/bpf/syscall.c:2120 [inline]
__do_sys_bpf+0x31e8/0xbbc0 kernel/bpf/syscall.c:2896
__se_sys_bpf kernel/bpf/syscall.c:2837 [inline]
__x64_sys_bpf+0x7a/0x90 kernel/bpf/syscall.c:2837
do_syscall_64+0xc0/0x100 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45af49
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f714a5e0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49
RDX: 0000000000000040 RSI: 0000000020000280 RDI: 000000000000000a
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f714a5e16d4
R13: 00000000004c15ad R14: 00000000004d6420 R15: 00000000ffffffff
Modules linked in:
---[ end trace 35746a3e6cfb94cc ]---
RIP: 0010:cgroup_ancestor include/linux/cgroup.h:586 [inline]
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RSP: 0018:ffff88819e1ef530 EFLAGS: 00010203
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000002
RDX: ffffc90003f8b000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff88819e1ef558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
R10: fffffbfff0933d6d R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000fff R15: ffff8881c7976812
FS: 00007f714a5e1700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32521000 CR3: 00000001cd720004 CR4: 00000000001606e0
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#status for how to communicate with syzbot.
syzbot
Jan 11, 2020, 12:03:10 AM1/11/20
to syzkaller-a...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: f5f770e4 ANDROID: Kconfig.gki: Add QCOM_SCM to QCOM Hidden..
git tree: android-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=175bfe56e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ca0c66e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+e48aa4...@syzkaller.appspotmail.com
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff8881cd1af558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
FS: 0000000002541880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7
RSP: 002b:00007ffe6e087aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403b9
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c40
R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace bfc751cf351860b3 ]---
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff8881cd1af558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
FS: 0000000002541880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
HEAD commit: f5f770e4 ANDROID: Kconfig.gki: Add QCOM_SCM to QCOM Hidden..
git tree: android-5.4
kernel config: https://syzkaller.appspot.com/x/.config?x=91fe4507c5782603
dashboard link: https://syzkaller.appspot.com/bug?extid=e48aa434db5743393fef
compiler: Android (6032204 based on r370808) clang version 10.0.1
(https://android.googlesource.com/toolchain/llvm-project
6e765c10313d15c02ab29977a82938f66742c3a9)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=128e069ee00000
dashboard link: https://syzkaller.appspot.com/bug?extid=e48aa434db5743393fef
compiler: Android (6032204 based on r370808) clang version 10.0.1
(https://android.googlesource.com/toolchain/llvm-project
6e765c10313d15c02ab29977a82938f66742c3a9)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ca0c66e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+e48aa4...@syzkaller.appspotmail.com
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1886 Comm: syz-executor978 Not tainted
5.4.10-syzkaller-00217-gf5f770e495ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:cgroup_ancestor include/linux/cgroup.h:586 [inline]
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RSP: 0018:ffff8881cd1af530 EFLAGS: 00010203
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:cgroup_ancestor include/linux/cgroup.h:586 [inline]
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff8881cd1af558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
R10: fffffbfff0933d6d R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000fff R15: ffff8881d0d12812
FS: 0000000002541880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000200 CR3: 00000001c4eaa006 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_prog_4b8778e422fd6c39+0x16c/0x1000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_call_func include/linux/filter.h:608 [inline]
bpf_test_run+0x2c0/0x6a0 net/bpf/test_run.c:44
bpf_prog_test_run_skb+0x7a6/0x10e0 net/bpf/test_run.c:310
bpf_prog_test_run kernel/bpf/syscall.c:2120 [inline]
__do_sys_bpf+0x31e8/0xbbc0 kernel/bpf/syscall.c:2896
__se_sys_bpf kernel/bpf/syscall.c:2837 [inline]
__x64_sys_bpf+0x7a/0x90 kernel/bpf/syscall.c:2837
do_syscall_64+0xc0/0x100 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4403b9
bpf_test_run+0x2c0/0x6a0 net/bpf/test_run.c:44
bpf_prog_test_run_skb+0x7a6/0x10e0 net/bpf/test_run.c:310
bpf_prog_test_run kernel/bpf/syscall.c:2120 [inline]
__do_sys_bpf+0x31e8/0xbbc0 kernel/bpf/syscall.c:2896
__se_sys_bpf kernel/bpf/syscall.c:2837 [inline]
__x64_sys_bpf+0x7a/0x90 kernel/bpf/syscall.c:2837
do_syscall_64+0xc0/0x100 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe6e087aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403b9
RDX: 0000000000000040 RSI: 0000000020000280 RDI: 000000000000000a
RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c40
R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace bfc751cf351860b3 ]---
RIP: 0010:cgroup_ancestor include/linux/cgroup.h:586 [inline]
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RSP: 0018:ffff8881cd1af530 EFLAGS: 00010203
RIP: 0010:____bpf_skb_ancestor_cgroup_id net/core/filter.c:4113 [inline]
RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11b/0x280 net/core/filter.c:4102
Code: 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 b8 90 8d fe
4d 8b 24 24 49 8d bc 24 fc 00 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 28 84
c0 0f 85 39 01 00 00 45 8b bc 24 fc 00 00 00 44 89
RAX: 000000000000001f RBX: 0000000000000080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000000000fc
RBP: ffff8881cd1af558 R08: ffffffff82e2f31f R09: fffffbfff0933d6d
R10: fffffbfff0933d6d R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000fff R15: ffff8881d0d12812
FS: 0000000002541880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000200 CR3: 00000001c4eaa006 CR4: 00000000001606e0
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