kernel panic: panic_on_warn set

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: e37aca80 ANDROID: modpost: Forbid double exports
git tree: android12-5.4
console output: https://syzkaller.appspot.com/x/log.txt?x=1748d2fd500000
kernel config: https://syzkaller.appspot.com/x/.config?x=ad643f8e0f1f7aa8
dashboard link: https://syzkaller.appspot.com/bug?extid=eb2b558aa09828431d57
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=1147d665500000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+eb2b55...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 370 at kernel/tracepoint.c:243 func_add kernel/tracepoint.c:147 [inline]
WARNING: CPU: 0 PID: 370 at kernel/tracepoint.c:243 tracepoint_add_func kernel/tracepoint.c:241 [inline]
WARNING: CPU: 0 PID: 370 at kernel/tracepoint.c:243 tracepoint_probe_register_prio+0x474/0x570 kernel/tracepoint.c:315
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 370 Comm: syz-executor.0 Not tainted 5.4.80-syzkaller-00759-ge37aca80313f #0
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+0x1dd/0x24e lib/dump_stack.c:118
panic+0x285/0x750 kernel/panic.c:221
__warn+0x1fd/0x200 kernel/panic.c:582
report_bug+0x390/0x4d0 lib/bug.c:195
fixup_bug arch/x86/kernel/traps.c:179 [inline]
do_error_trap arch/x86/kernel/traps.c:272 [inline]
do_invalid_op+0x6e/0x110 arch/x86/kernel/traps.c:291
invalid_op+0x1e/0x30 arch/x86/entry/entry_64.S:1029
RIP: 0010:tracepoint_add_func kernel/tracepoint.c:147 [inline]
RIP: 0010:tracepoint_probe_register_prio+0x474/0x570 kernel/tracepoint.c:315
Code: ef e8 b0 ec 19 00 41 89 c6 31 ff 89 c6 e8 b4 22 ff ff 45 85 f6 7e 1a e8 0a 1f ff ff eb 20 e8 03 1f ff ff 49 c7 c7 ef ff ff ff <0f> 0b 44 89 fd eb 4f e8 f0 1e ff ff 48 89 ef e8 b8 f2 19 00 31 ed
RSP: 0018:ffff8881e8727950 EFLAGS: 00010293
RAX: ffffffff8163c5cd RBX: dffffc0000000000 RCX: ffff8881e86a8000
RDX: 0000000000000000 RSI: 000000000000000a RDI: 000000000000000a
RBP: ffff8881e84bbb10 R08: ffffffff8163c310 R09: ffffed103d0e4f19
R10: ffffed103d0e4f19 R11: 0000000000000000 R12: 00000000ffffffff
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffffffffef
bpf_raw_tracepoint_open kernel/bpf/syscall.c:1854 [inline]
__do_sys_bpf+0x24cb/0xbfc0 kernel/bpf/syscall.c:2930
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f552d1cac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000001800 RCX: 000000000045deb9
RDX: 0000000000000010 RSI: 00000000200000c0 RDI: 0000000000000011
RBP: 000000000118c008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4
R13: 00007fff3e5f938f R14: 00007f552d1cb9c0 R15: 000000000118bfd4
Kernel Offset: disabled
Rebooting in 86400 seconds..


---
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[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: e37aca80 ANDROID: modpost: Forbid double exports
git tree: android12-5.4

console output: https://syzkaller.appspot.com/x/log.txt?x=118ef1fd500000

kernel config: https://syzkaller.appspot.com/x/.config?x=ad643f8e0f1f7aa8
dashboard link: https://syzkaller.appspot.com/bug?extid=eb2b558aa09828431d57
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=124638d9500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=137c9553500000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+eb2b55...@syzkaller.appspotmail.com

Warning: Permanently added '10.128.1.26' (ECDSA) to the list of known hosts.
[ [0m [0;31m* [0m] A start job is running for dev-ttyS0.device (8s / 1min 30s) [K[ [0;1;31m* [0m [0;31m* [0m] A start job is running for dev-ttyS0.device (8s / 1min 30s) [K[ [0;31m* [0;1;31m* [0m [0;31m* [0m] A start job is running for dev-ttyS0.device (9s / 1min 30s) [K[ [0;31m* [0;1;31m* [0m [0;31m* [0m] A start job is running for dev-ttyS0.device (9s / 1min 30s) [K[ [0;31m* [0;1;31m* [0m [0;31m* [0m] A start job is running for dev-ttyS0.device (10s / 1min 30s) [K[ [0;31m* [0;1;31m* [0m [0;31m* [0m] A start job is running for dev-ttyS0.device (10s / 1min 30s) [K[ [0;31m* [0;1;31m* [0m] A start job is running for dev-ttyS0.device (11s / 1min 30s) [K[ [0;31m* [0m] A start job is running for dev-ttyS0.device (11s / 1min 30s) [K[ [0;31m* [0;1;31m* [0m] A start job is running for dev-ttyS0.device (12s / 1min 30s) [K[ [0;31m* [0;1;31m* [0m [0;31m* [0m] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ 19.738601][ T22] audit: type=1400 audit(1606696313.451:8): avc: denied { execmem } for pid=355 comm="syz-executor105" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[K[ [0;31m* [0;1[ 19.760583][ T356] ------------[ cut here ]------------
;31m* [0m [0;31m[ 19.777369][ T356] Kernel panic - not syncing: panic_on_warn set ...
* [0m] A start [ 19.809002][ T356] __dump_stack lib/dump_stack.c:77 [inline]
* [0m] A start [ 19.809002][ T356] dump_stack+0x1dd/0x24e lib/dump_stack.c:118
job is running f[ 19.819615][ T356] ? show_regs_print_info+0x12/0x12 lib/dump_stack.c:71
or dev-ttyS0.dev[ 19.830920][ T356] ? func_add kernel/tracepoint.c:169 [inline]
or dev-ttyS0.dev[ 19.830920][ T356] ? tracepoint_add_func kernel/tracepoint.c:241 [inline]
or dev-ttyS0.dev[ 19.830920][ T356] ? tracepoint_probe_register_prio+0x3a0/0x570 kernel/tracepoint.c:315
ice (13s / 1min [ 19.844754][ T356] panic+0x285/0x750 kernel/panic.c:221
30s)[ 19.854106][ T356] ? nmi_panic+0x90/0x90 kernel/panic.c:132

[syzbot]

Auto-closing this bug as obsolete.
No recent activity, existing reproducers are no longer triggering the issue.