[v6.1] WARNING in format_decode
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syzbot
Nov 17, 2023, 5:49:28 PM11/17/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: fb2635ac69ab Linux 6.1.62
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=152ddc9f680000
kernel config: https://syzkaller.appspot.com/x/.config?x=d1540e3da5e5623f
dashboard link: https://syzkaller.appspot.com/bug?extid=e2e0d959be60c6d0dc32
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c564654b9f0a/disk-fb2635ac.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/7967ffa53eb1/vmlinux-fb2635ac.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2ddd941684d4/bzImage-fb2635ac.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e2e0d9...@syzkaller.appspotmail.com
------------[ cut here ]------------
Please remove unsupported % in format string
WARNING: CPU: 1 PID: 28318 at lib/vsprintf.c:2656 format_decode+0x12d2/0x1f10 lib/vsprintf.c:2656
Modules linked in:
CPU: 1 PID: 28318 Comm: syz-executor.0 Not tainted 6.1.62-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2656
Code: db 03 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 a0 5c 07 8c e8 fe 15 cf f6 <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RSP: 0018:ffffc900068f76a0 EFLAGS: 00010046
RAX: e619ff718da5bd00 RBX: 00000000ffffffdb RCX: 0000000000040000
RDX: ffffc90003ba1000 RSI: 00000000000043f2 RDI: 00000000000043f3
RBP: ffffc900068f7790 R08: ffffffff81527dae R09: ffffed1017324f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff0a00ffffff00
R13: ffff0000ffffff00 R14: ffffc900068f79ac R15: 1ffff92000d1ef35
FS: 00007fecf5fe06c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32c21000 CR3: 000000004981f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bstr_printf+0x130/0x10c0 lib/vsprintf.c:3229
____bpf_trace_printk kernel/trace/bpf_trace.c:391 [inline]
bpf_trace_printk+0x186/0x200 kernel/trace/bpf_trace.c:376
bpf_prog_12183cdb1cd51dab+0x2e/0x32
bpf_dispatcher_nop_func include/linux/bpf.h:970 [inline]
__bpf_prog_run include/linux/filter.h:600 [inline]
bpf_prog_run include/linux/filter.h:607 [inline]
bpf_test_run+0x40f/0x8b0 net/bpf/test_run.c:402
bpf_prog_test_run_skb+0xaf1/0x13a0 net/bpf/test_run.c:1180
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3633
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:4986
__do_sys_bpf kernel/bpf/syscall.c:5072 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5070 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5070
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fecf527cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fecf5fe00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fecf539bf80 RCX: 00007fecf527cae9
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007fecf52c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fecf539bf80 R15: 00007ffc9df340b8
</TASK>
---
This report 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 issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: fb2635ac69ab Linux 6.1.62
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=152ddc9f680000
kernel config: https://syzkaller.appspot.com/x/.config?x=d1540e3da5e5623f
dashboard link: https://syzkaller.appspot.com/bug?extid=e2e0d959be60c6d0dc32
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c564654b9f0a/disk-fb2635ac.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/7967ffa53eb1/vmlinux-fb2635ac.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2ddd941684d4/bzImage-fb2635ac.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e2e0d9...@syzkaller.appspotmail.com
------------[ cut here ]------------
Please remove unsupported % in format string
WARNING: CPU: 1 PID: 28318 at lib/vsprintf.c:2656 format_decode+0x12d2/0x1f10 lib/vsprintf.c:2656
Modules linked in:
CPU: 1 PID: 28318 Comm: syz-executor.0 Not tainted 6.1.62-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2656
Code: db 03 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 a0 5c 07 8c e8 fe 15 cf f6 <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RSP: 0018:ffffc900068f76a0 EFLAGS: 00010046
RAX: e619ff718da5bd00 RBX: 00000000ffffffdb RCX: 0000000000040000
RDX: ffffc90003ba1000 RSI: 00000000000043f2 RDI: 00000000000043f3
RBP: ffffc900068f7790 R08: ffffffff81527dae R09: ffffed1017324f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff0a00ffffff00
R13: ffff0000ffffff00 R14: ffffc900068f79ac R15: 1ffff92000d1ef35
FS: 00007fecf5fe06c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32c21000 CR3: 000000004981f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bstr_printf+0x130/0x10c0 lib/vsprintf.c:3229
____bpf_trace_printk kernel/trace/bpf_trace.c:391 [inline]
bpf_trace_printk+0x186/0x200 kernel/trace/bpf_trace.c:376
bpf_prog_12183cdb1cd51dab+0x2e/0x32
bpf_dispatcher_nop_func include/linux/bpf.h:970 [inline]
__bpf_prog_run include/linux/filter.h:600 [inline]
bpf_prog_run include/linux/filter.h:607 [inline]
bpf_test_run+0x40f/0x8b0 net/bpf/test_run.c:402
bpf_prog_test_run_skb+0xaf1/0x13a0 net/bpf/test_run.c:1180
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3633
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:4986
__do_sys_bpf kernel/bpf/syscall.c:5072 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5070 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5070
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fecf527cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fecf5fe00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fecf539bf80 RCX: 00007fecf527cae9
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007fecf52c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fecf539bf80 R15: 00007ffc9df340b8
</TASK>
---
This report 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 issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Nov 17, 2023, 6:17:24 PM11/17/23
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: fb2635ac69ab Linux 6.1.62
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=178db0f0e80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1559bf50e80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c564654b9f0a/disk-fb2635ac.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/7967ffa53eb1/vmlinux-fb2635ac.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2ddd941684d4/bzImage-fb2635ac.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e2e0d9...@syzkaller.appspotmail.com
------------[ cut here ]------------
Please remove unsupported % in format string
WARNING: CPU: 1 PID: 3543 at lib/vsprintf.c:2656 format_decode+0x12d2/0x1f10 lib/vsprintf.c:2656
Modules linked in:
CPU: 1 PID: 3543 Comm: syz-executor101 Not tainted 6.1.62-syzkaller #0
RAX: 587efa63157d4600 RBX: 00000000ffffffdb RCX: ffff888027378000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003b1f790 R08: ffffffff81527dae R09: ffffed1017324f1c
FS: 0000555556356380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc4b441b48 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ffc4b441d18 RCX: 00007ff71512d4e9
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc4b441d08 R14: 0000000000000001 R15: 0000000000000001
</TASK>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: fb2635ac69ab Linux 6.1.62
git tree: linux-6.1.y
kernel config: https://syzkaller.appspot.com/x/.config?x=d1540e3da5e5623f
dashboard link: https://syzkaller.appspot.com/bug?extid=e2e0d959be60c6d0dc32
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15738844e80000
dashboard link: https://syzkaller.appspot.com/bug?extid=e2e0d959be60c6d0dc32
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1559bf50e80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c564654b9f0a/disk-fb2635ac.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/7967ffa53eb1/vmlinux-fb2635ac.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2ddd941684d4/bzImage-fb2635ac.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e2e0d9...@syzkaller.appspotmail.com
------------[ cut here ]------------
Please remove unsupported % in format string
Modules linked in:
CPU: 1 PID: 3543 Comm: syz-executor101 Not tainted 6.1.62-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2656
Code: db 03 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 a0 5c 07 8c e8 fe 15 cf f6 <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RSP: 0018:ffffc90003b1f6a0 EFLAGS: 00010046
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2656
Code: db 03 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 a0 5c 07 8c e8 fe 15 cf f6 <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RAX: 587efa63157d4600 RBX: 00000000ffffffdb RCX: ffff888027378000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003b1f790 R08: ffffffff81527dae R09: ffffed1017324f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff0a00ffffff00
R13: ffff0000ffffff00 R14: ffffc90003b1f9ac R15: 1ffff92000763f35
FS: 0000555556356380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 00000000279ec000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bstr_printf+0x130/0x10c0 lib/vsprintf.c:3229
____bpf_trace_printk kernel/trace/bpf_trace.c:391 [inline]
bpf_trace_printk+0x186/0x200 kernel/trace/bpf_trace.c:376
bpf_prog_12183cdb1cd51dab+0x2e/0x32
bpf_dispatcher_nop_func include/linux/bpf.h:970 [inline]
__bpf_prog_run include/linux/filter.h:600 [inline]
bpf_prog_run include/linux/filter.h:607 [inline]
bpf_test_run+0x40f/0x8b0 net/bpf/test_run.c:402
bpf_prog_test_run_skb+0xaf1/0x13a0 net/bpf/test_run.c:1180
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3633
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:4986
__do_sys_bpf kernel/bpf/syscall.c:5072 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5070 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5070
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff71512d4e9
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bstr_printf+0x130/0x10c0 lib/vsprintf.c:3229
____bpf_trace_printk kernel/trace/bpf_trace.c:391 [inline]
bpf_trace_printk+0x186/0x200 kernel/trace/bpf_trace.c:376
bpf_prog_12183cdb1cd51dab+0x2e/0x32
bpf_dispatcher_nop_func include/linux/bpf.h:970 [inline]
__bpf_prog_run include/linux/filter.h:600 [inline]
bpf_prog_run include/linux/filter.h:607 [inline]
bpf_test_run+0x40f/0x8b0 net/bpf/test_run.c:402
bpf_prog_test_run_skb+0xaf1/0x13a0 net/bpf/test_run.c:1180
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3633
__sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:4986
__do_sys_bpf kernel/bpf/syscall.c:5072 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5070 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5070
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc4b441b48 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ffc4b441d18 RCX: 00007ff71512d4e9
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007ff7151a0610 R08: 0000000000000000 R09: 00007ffc4b441d18
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc4b441d08 R14: 0000000000000001 R15: 0000000000000001
</TASK>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
syzbot
Nov 17, 2023, 6:37:24 PM11/17/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 80529b4968a8 Linux 5.15.138
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1239a610e80000
kernel config: https://syzkaller.appspot.com/x/.config?x=c431dbb457f792c5
dashboard link: https://syzkaller.appspot.com/bug?extid=62370a20d9e4691f7b49
disk image: https://storage.googleapis.com/syzbot-assets/4fd4b10a6041/disk-80529b49.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/60443f81279e/vmlinux-80529b49.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c7f38af1be13/bzImage-80529b49.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+62370a...@syzkaller.appspotmail.com
------------[ cut here ]------------
Please remove unsupported % in format string
WARNING: CPU: 1 PID: 4275 at lib/vsprintf.c:2662 format_decode+0x12d2/0x1f10 lib/vsprintf.c:2662
Modules linked in:
CPU: 1 PID: 4275 Comm: syz-executor.5 Not tainted 5.15.138-syzkaller #0
Code: a4 09 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 20 a1 db 8a e8 ae c4 1f fd <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RSP: 0018:ffffc9000545f6e0 EFLAGS: 00010046
RAX: 943e76d5096ba100 RBX: 00000000ffffffdb RCX: 0000000000040000
RDX: ffffc90005fa9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000545f7d0 R08: ffffffff816658fc R09: ffffed1017364f24
FS: 00007fc96786d6c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
____bpf_trace_printk kernel/trace/bpf_trace.c:383 [inline]
bpf_trace_printk+0x191/0x3d0 kernel/trace/bpf_trace.c:368
bpf_prog_12183cdb1cd51dab+0x2e/0xb60
bpf_dispatcher_nop_func include/linux/bpf.h:776 [inline]
__bpf_prog_run include/linux/filter.h:625 [inline]
bpf_prog_run include/linux/filter.h:632 [inline]
bpf_test_run+0x3f4/0x8a0 net/bpf/test_run.c:119
bpf_prog_test_run_skb+0xb41/0x1420 net/bpf/test_run.c:663
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3331
__sys_bpf+0x3ac/0x670 kernel/bpf/syscall.c:4632
__do_sys_bpf kernel/bpf/syscall.c:4718 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4716 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4716
RIP: 0033:0x7fc9692ebae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc96786d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc96940af80 RCX: 00007fc9692ebae9
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc96940af80 R15: 00007ffd418e0db8
syzbot found the following issue on:
HEAD commit: 80529b4968a8 Linux 5.15.138
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1239a610e80000
kernel config: https://syzkaller.appspot.com/x/.config?x=c431dbb457f792c5
dashboard link: https://syzkaller.appspot.com/bug?extid=62370a20d9e4691f7b49
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4fd4b10a6041/disk-80529b49.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/60443f81279e/vmlinux-80529b49.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c7f38af1be13/bzImage-80529b49.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
------------[ cut here ]------------
Please remove unsupported % in format string
Modules linked in:
CPU: 1 PID: 4275 Comm: syz-executor.5 Not tainted 5.15.138-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2662
Code: a4 09 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 20 a1 db 8a e8 ae c4 1f fd <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RSP: 0018:ffffc9000545f6e0 EFLAGS: 00010046
RAX: 943e76d5096ba100 RBX: 00000000ffffffdb RCX: 0000000000040000
RDX: ffffc90005fa9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000545f7d0 R08: ffffffff816658fc R09: ffffed1017364f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff0a00ffffff00
R13: ffff0000ffffff00 R14: ffffc9000545f9ec R15: 1ffff92000a8bf3d
FS: 00007fc96786d6c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30f21000 CR3: 00000000634f0000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bstr_printf+0x130/0x10c0 lib/vsprintf.c:3233
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
____bpf_trace_printk kernel/trace/bpf_trace.c:383 [inline]
bpf_trace_printk+0x191/0x3d0 kernel/trace/bpf_trace.c:368
bpf_prog_12183cdb1cd51dab+0x2e/0xb60
bpf_dispatcher_nop_func include/linux/bpf.h:776 [inline]
__bpf_prog_run include/linux/filter.h:625 [inline]
bpf_prog_run include/linux/filter.h:632 [inline]
bpf_test_run+0x3f4/0x8a0 net/bpf/test_run.c:119
bpf_prog_test_run_skb+0xb41/0x1420 net/bpf/test_run.c:663
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3331
__sys_bpf+0x3ac/0x670 kernel/bpf/syscall.c:4632
__do_sys_bpf kernel/bpf/syscall.c:4718 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4716 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4716
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
RIP: 0033:0x7fc9692ebae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc96786d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fc96940af80 RCX: 00007fc9692ebae9
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007fc96933747a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc96940af80 R15: 00007ffd418e0db8
syzbot
Nov 17, 2023, 8:06:22 PM11/17/23
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 80529b4968a8 Linux 5.15.138
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17bc12f0e80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14dac2f0e80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4fd4b10a6041/disk-80529b49.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/60443f81279e/vmlinux-80529b49.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c7f38af1be13/bzImage-80529b49.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+62370a...@syzkaller.appspotmail.com
------------[ cut here ]------------
Please remove unsupported % in format string
WARNING: CPU: 1 PID: 3498 at lib/vsprintf.c:2662 format_decode+0x12d2/0x1f10 lib/vsprintf.c:2662
Modules linked in:
CPU: 1 PID: 3498 Comm: syz-executor420 Not tainted 5.15.138-syzkaller #0
RAX: 760f114259194900 RBX: 00000000ffffffdb RCX: ffff88807a75d940
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: ffffc90001f6f7d0 R08: ffffffff816658fc R09: ffffed1017364f24
FS: 0000555556e7c380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe4def3b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ffe4def3d68 RCX: 00007f3cc03c84e9
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe4def3d58 R14: 0000000000000001 R15: 0000000000000001
HEAD commit: 80529b4968a8 Linux 5.15.138
git tree: linux-5.15.y
kernel config: https://syzkaller.appspot.com/x/.config?x=c431dbb457f792c5
dashboard link: https://syzkaller.appspot.com/bug?extid=62370a20d9e4691f7b49
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=176ea200e80000
dashboard link: https://syzkaller.appspot.com/bug?extid=62370a20d9e4691f7b49
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14dac2f0e80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4fd4b10a6041/disk-80529b49.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/60443f81279e/vmlinux-80529b49.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c7f38af1be13/bzImage-80529b49.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+62370a...@syzkaller.appspotmail.com
------------[ cut here ]------------
Please remove unsupported % in format string
Modules linked in:
CPU: 1 PID: 3498 Comm: syz-executor420 Not tainted 5.15.138-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2662
Code: a4 09 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 20 a1 db 8a e8 ae c4 1f fd <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RSP: 0018:ffffc90001f6f6e0 EFLAGS: 00010046
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2662
Code: a4 09 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 20 a1 db 8a e8 ae c4 1f fd <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RAX: 760f114259194900 RBX: 00000000ffffffdb RCX: ffff88807a75d940
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: ffffc90001f6f7d0 R08: ffffffff816658fc R09: ffffed1017364f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff0a00ffffff00
R13: ffff0000ffffff00 R14: ffffc90001f6f9ec R15: 1ffff920003edf3d
FS: 0000555556e7c380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 000000001f21a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bstr_printf+0x130/0x10c0 lib/vsprintf.c:3233
____bpf_trace_printk kernel/trace/bpf_trace.c:383 [inline]
bpf_trace_printk+0x191/0x3d0 kernel/trace/bpf_trace.c:368
bpf_prog_12183cdb1cd51dab+0x2e/0x3c0
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bstr_printf+0x130/0x10c0 lib/vsprintf.c:3233
____bpf_trace_printk kernel/trace/bpf_trace.c:383 [inline]
bpf_trace_printk+0x191/0x3d0 kernel/trace/bpf_trace.c:368
bpf_dispatcher_nop_func include/linux/bpf.h:776 [inline]
__bpf_prog_run include/linux/filter.h:625 [inline]
bpf_prog_run include/linux/filter.h:632 [inline]
bpf_test_run+0x3f4/0x8a0 net/bpf/test_run.c:119
bpf_prog_test_run_skb+0xb41/0x1420 net/bpf/test_run.c:663
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3331
__sys_bpf+0x3ac/0x670 kernel/bpf/syscall.c:4632
__do_sys_bpf kernel/bpf/syscall.c:4718 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4716 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4716
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3cc03c84e9
__bpf_prog_run include/linux/filter.h:625 [inline]
bpf_prog_run include/linux/filter.h:632 [inline]
bpf_test_run+0x3f4/0x8a0 net/bpf/test_run.c:119
bpf_prog_test_run_skb+0xb41/0x1420 net/bpf/test_run.c:663
bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3331
__sys_bpf+0x3ac/0x670 kernel/bpf/syscall.c:4632
__do_sys_bpf kernel/bpf/syscall.c:4718 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4716 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4716
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe4def3b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ffe4def3d68 RCX: 00007f3cc03c84e9
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007f3cc043b610 R08: 0000000000000000 R09: 00007ffe4def3d68
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe4def3d58 R14: 0000000000000001 R15: 0000000000000001
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