* [syzbot] WARNING in call_timer_fn
@ 2022-11-16 15:25 syzbot
2022-11-16 18:29 ` Thomas Gleixner
2024-11-12 3:46 ` [syzbot] [bluetooth] " syzbot
0 siblings, 2 replies; 3+ messages in thread
From: syzbot @ 2022-11-16 15:25 UTC (permalink / raw)
To: ben-linux, bp, daniel.sneddon, dave.hansen, hpa, linux-kernel,
mingo, netdev, pbonzini, sathyanarayanan.kuppuswamy,
syzkaller-bugs, tglx, x86
Hello,
syzbot found the following issue on:
HEAD commit: 7eba4505394e net: dcb: move getapptrust to separate function
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=16626ce9880000
kernel config: https://syzkaller.appspot.com/x/.config?x=893a728fb1a6b263
dashboard link: https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16899f35880000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/68b1a18c1aad/disk-7eba4505.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f03970850c94/vmlinux-7eba4505.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4775c120c4c6/bzImage-7eba4505.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6fb78d577e89e69602f9@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5978 at kernel/workqueue.c:1438 __queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
Modules linked in:
CPU: 0 PID: 5978 Comm: syz-executor.3 Not tainted 6.1.0-rc4-syzkaller-01070-g7eba4505394e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
Code: e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 e8 64 7b 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 09 5e 2e 00 85 db 75 42 e8 50 61 2e 00 <0f> 0b e9 7e f7 ff ff e8 44 61 2e 00 0f 0b e9 10 f7 ff ff e8 38 61
RSP: 0018:ffffc90000007c98 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000100 RCX: 0000000000000100
RDX: ffff888022ba9d40 RSI: ffffffff8151be20 RDI: 0000000000000005
RBP: ffffc90000007d60 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000001 R12: ffff88806ccf4b30
R13: ffff88806ccf4b78 R14: 0000000000000000 R15: ffff88807568f000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555558e1708 CR3: 0000000076b84000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1514 [inline]
__run_timers.part.0+0x4a3/0xaf0 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0xb7/0x1d0 kernel/time/timer.c:1803
__do_softirq+0x1fb/0xadc kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x227/0x630 kernel/locking/lockdep.c:5636
Code: 76 9f 7e 83 f8 01 0f 85 3a 03 00 00 9c 58 f6 c4 02 0f 85 25 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90006f678d0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000decf1d RCX: 0000000000000001
RDX: 1ffff110045754f1 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff912a75ef
R10: fffffbfff2254ebd R11: 1ffffffff212a1df R12: 0000000000000000
R13: 0000000000000000 R14: ffff88807568f138 R15: 0000000000000000
__flush_workqueue+0x118/0x13a0 kernel/workqueue.c:2809
drain_workqueue+0x1a9/0x3c0 kernel/workqueue.c:2974
hci_dev_close_sync+0x2f3/0x1200 net/bluetooth/hci_sync.c:4809
hci_dev_do_close+0x31/0x70 net/bluetooth/hci_core.c:554
hci_unregister_dev+0x183/0x4e0 net/bluetooth/hci_core.c:2702
vhci_release+0x80/0xf0 drivers/bluetooth/hci_vhci.c:568
__fput+0x27c/0xa90 fs/file_table.c:320
task_work_run+0x16f/0x270 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xb3d/0x2a30 kernel/exit.c:820
do_group_exit+0xd4/0x2a0 kernel/exit.c:950
__do_sys_exit_group kernel/exit.c:961 [inline]
__se_sys_exit_group kernel/exit.c:959 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:959
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3d8a68b639
Code: Unable to access opcode bytes at 0x7f3d8a68b60f.
RSP: 002b:00007ffd554b9878 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 00007f3d8a68b639
RDX: 00007f3d8a68cc8a RSI: 0000000000000000 RDI: 0000000000000007
RBP: 0000000000000007 R08: ffffffffff000000 R09: 0000000000000029
R10: 00000000000003b8 R11: 0000000000000246 R12: 00007ffd554b9f00
R13: 0000000000000003 R14: 00007ffd554b9e9c R15: 00007f3d8a782b60
</TASK>
----------------
Code disassembly (best guess):
0: 76 9f jbe 0xffffffa1
2: 7e 83 jle 0xffffff87
4: f8 clc
5: 01 0f add %ecx,(%rdi)
7: 85 3a test %edi,(%rdx)
9: 03 00 add (%rax),%eax
b: 00 9c 58 f6 c4 02 0f add %bl,0xf02c4f6(%rax,%rbx,2)
12: 85 25 03 00 00 48 test %esp,0x48000003(%rip) # 0x4800001b
18: 83 7c 24 08 00 cmpl $0x0,0x8(%rsp)
1d: 74 01 je 0x20
1f: fb sti
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction
2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx)
3b: 00
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 84 .byte 0x84
3f: 24 .byte 0x24
---
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 syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] WARNING in call_timer_fn
2022-11-16 15:25 [syzbot] WARNING in call_timer_fn syzbot
@ 2022-11-16 18:29 ` Thomas Gleixner
2024-11-12 3:46 ` [syzbot] [bluetooth] " syzbot
1 sibling, 0 replies; 3+ messages in thread
From: Thomas Gleixner @ 2022-11-16 18:29 UTC (permalink / raw)
To: syzbot, ben-linux, bp, daniel.sneddon, dave.hansen, hpa,
linux-kernel, mingo, netdev, pbonzini, sathyanarayanan.kuppuswamy,
syzkaller-bugs, x86, Steven Rostedt, Marcel Holtmann,
Luiz Augusto von Dentz
On Wed, Nov 16 2022 at 07:25, syzbot wrote:
> HEAD commit: 7eba4505394e net: dcb: move getapptrust to separate function
> git tree: net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=16626ce9880000
> kernel config: https://syzkaller.appspot.com/x/.config?x=893a728fb1a6b263
> dashboard link: https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16899f35880000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/68b1a18c1aad/disk-7eba4505.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/f03970850c94/vmlinux-7eba4505.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/4775c120c4c6/bzImage-7eba4505.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+6fb78d577e89e69602f9@syzkaller.appspotmail.com
>
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 5978 at kernel/workqueue.c:1438 __queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
> Modules linked in:
> CPU: 0 PID: 5978 Comm: syz-executor.3 Not tainted 6.1.0-rc4-syzkaller-01070-g7eba4505394e #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
> RIP: 0010:__queue_work+0xf70/0x13b0 kernel/workqueue.c:1438
> Code: e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 e8 64 7b 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 09 5e 2e 00 85 db 75 42 e8 50 61 2e 00 <0f> 0b e9 7e f7 ff ff e8 44 61 2e 00 0f 0b e9 10 f7 ff ff e8 38 61
> RSP: 0018:ffffc90000007c98 EFLAGS: 00010046
> RAX: 0000000000000000 RBX: 0000000000000100 RCX: 0000000000000100
> RDX: ffff888022ba9d40 RSI: ffffffff8151be20 RDI: 0000000000000005
> RBP: ffffc90000007d60 R08: 0000000000000005 R09: 0000000000000000
> R10: 0000000000000100 R11: 0000000000000001 R12: ffff88806ccf4b30
> R13: ffff88806ccf4b78 R14: 0000000000000000 R15: ffff88807568f000
> FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00005555558e1708 CR3: 0000000076b84000 CR4: 00000000003506f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
> <IRQ>
> call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1474
> expire_timers kernel/time/timer.c:1514 [inline]
> __run_timers.part.0+0x4a3/0xaf0 kernel/time/timer.c:1790
> __run_timers kernel/time/timer.c:1768 [inline]
> run_timer_softirq+0xb7/0x1d0 kernel/time/timer.c:1803
> __do_softirq+0x1fb/0xadc kernel/softirq.c:571
> invoke_softirq kernel/softirq.c:445 [inline]
> __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
> irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
> sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
> </IRQ>
> <TASK>
> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
> RIP: 0010:lock_acquire+0x227/0x630 kernel/locking/lockdep.c:5636
> Code: 76 9f 7e 83 f8 01 0f 85 3a 03 00 00 9c 58 f6 c4 02 0f 85 25 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
> RSP: 0018:ffffc90006f678d0 EFLAGS: 00000206
> RAX: dffffc0000000000 RBX: 1ffff92000decf1d RCX: 0000000000000001
> RDX: 1ffff110045754f1 RSI: 0000000000000000 RDI: 0000000000000000
> RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff912a75ef
> R10: fffffbfff2254ebd R11: 1ffffffff212a1df R12: 0000000000000000
> R13: 0000000000000000 R14: ffff88807568f138 R15: 0000000000000000
> __flush_workqueue+0x118/0x13a0 kernel/workqueue.c:2809
> drain_workqueue+0x1a9/0x3c0 kernel/workqueue.c:2974
> hci_dev_close_sync+0x2f3/0x1200 net/bluetooth/hci_sync.c:4809
> hci_dev_do_close+0x31/0x70 net/bluetooth/hci_core.c:554
> hci_unregister_dev+0x183/0x4e0 net/bluetooth/hci_core.c:2702
> vhci_release+0x80/0xf0 drivers/bluetooth/hci_vhci.c:568
> __fput+0x27c/0xa90 fs/file_table.c:320
> task_work_run+0x16f/0x270 kernel/task_work.c:179
> exit_task_work include/linux/task_work.h:38 [inline]
> do_exit+0xb3d/0x2a30 kernel/exit.c:820
> do_group_exit+0xd4/0x2a0 kernel/exit.c:950
> __do_sys_exit_group kernel/exit.c:961 [inline]
> __se_sys_exit_group kernel/exit.c:959 [inline]
> __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:959
> do_syscall_x64 arch/x86/entry/common.c:50 [inline]
> do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
> entry_SYSCALL_64_after_hwframe+0x63/0xcd
> RIP: 0033:0x7f3d8a68b639
> Code: Unable to access opcode bytes at 0x7f3d8a68b60f.
> RSP: 002b:00007ffd554b9878 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 00007f3d8a68b639
> RDX: 00007f3d8a68cc8a RSI: 0000000000000000 RDI: 0000000000000007
> RBP: 0000000000000007 R08: ffffffffff000000 R09: 0000000000000029
> R10: 00000000000003b8 R11: 0000000000000246 R12: 00007ffd554b9f00
> R13: 0000000000000003 R14: 00007ffd554b9e9c R15: 00007f3d8a782b60
That's precisely the case I described here:
https://lore.kernel.org/all/87iljhsftt.ffs@tglx
and the final fix is here:
https://lore.kernel.org/all/20221115195802.415956561@linutronix.de
but that will take a bit to get upstream. In the meanwhile someone could
sprinkle 'if (in_shutdown)' conditionals into the code to prevent the
splat.
Thanks,
tglx
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [bluetooth] WARNING in call_timer_fn
2022-11-16 15:25 [syzbot] WARNING in call_timer_fn syzbot
2022-11-16 18:29 ` Thomas Gleixner
@ 2024-11-12 3:46 ` syzbot
1 sibling, 0 replies; 3+ messages in thread
From: syzbot @ 2024-11-12 3:46 UTC (permalink / raw)
To: ben-linux, bp, daniel.sneddon, dave.hansen, gregkh, hdanton, hpa,
linux-bluetooth, linux-kernel, linux-usb, luiz.dentz, marcel,
mingo, netdev, pbonzini, penguin-kernel, penguin-kernel, rafael,
rosted, sathyanarayanan.kuppuswamy, syzkaller-bugs, tglx, x86
syzbot has found a reproducer for the following issue on:
HEAD commit: de9df030ccb5 usb: typec: ucsi: glink: be more precise on o..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
console output: https://syzkaller.appspot.com/x/log.txt?x=15637ea7980000
kernel config: https://syzkaller.appspot.com/x/.config?x=358c1689354aeef3
dashboard link: https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101db8c0580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1738f4e8580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/fcce9dc5242d/disk-de9df030.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/420ef3e22854/vmlinux-de9df030.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a6d0ac1f944e/bzImage-de9df030.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6fb78d577e89e69602f9@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9 at kernel/workqueue.c:2257 __queue_work+0xc3a/0x1080 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.12.0-rc6-syzkaller-00106-gde9df030ccb5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:__queue_work+0xc3a/0x1080 kernel/workqueue.c:2256
Code: 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 7f 46 8b 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 40 bf 32 00 85 db 75 60 e8 f7 bc 32 00 90 <0f> 0b 90 e9 f9 f7 ff ff e8 e9 bc 32 00 90 0f 0b 90 e9 a8 f7 ff ff
RSP: 0018:ffffc90000007bf0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000100 RCX: ffffffff812335c1
RDX: ffff888101698000 RSI: ffffffff81233619 RDI: 0000000000000005
RBP: ffff88811a063780 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: 1ffff92000000f90
R13: 0000000000000001 R14: 0000000000000101 R15: ffff888106b28800
FS: 0000000000000000(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7cbbc0c258 CR3: 0000000116944000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1794
expire_timers kernel/time/timer.c:1840 [inline]
__run_timers+0x56a/0x930 kernel/time/timer.c:2419
__run_timer_base kernel/time/timer.c:2430 [inline]
__run_timer_base kernel/time/timer.c:2423 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2439
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2449
handle_softirqs+0x206/0x8d0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xac/0x110 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2042 [inline]
RIP: 0010:vprintk_emit+0x621/0x6f0 kernel/printk/printk.c:2406
Code: 85 ed 0f 85 81 00 00 00 e8 0c 94 1f 00 9c 41 5c 41 81 e4 00 02 00 00 31 ff 4c 89 e6 e8 68 96 1f 00 4d 85 e4 0f 85 8d 00 00 00 <e8> ea 93 1f 00 45 31 c9 41 b8 01 00 00 00 31 c9 48 8d 05 00 00 00
RSP: 0018:ffffc9000009f6e8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000029 RCX: ffffffff81365f9e
RDX: ffff888101698000 RSI: ffffffff81365fa8 RDI: 0000000000000007
RBP: 1ffff92000013edf R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000200 R14: ffff88810d331d40 R15: ffffc9000009f7b0
dev_vprintk_emit drivers/base/core.c:4942 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4953
__dev_printk+0xf5/0x270 drivers/base/core.c:4965
_dev_info+0xe5/0x120 drivers/base/core.c:5011
usb_disconnect+0xec/0x920 drivers/usb/core/hub.c:2286
hub_port_connect drivers/usb/core/hub.c:5361 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
----------------
Code disassembly (best guess):
0: 85 ed test %ebp,%ebp
2: 0f 85 81 00 00 00 jne 0x89
8: e8 0c 94 1f 00 call 0x1f9419
d: 9c pushf
e: 41 5c pop %r12
10: 41 81 e4 00 02 00 00 and $0x200,%r12d
17: 31 ff xor %edi,%edi
19: 4c 89 e6 mov %r12,%rsi
1c: e8 68 96 1f 00 call 0x1f9689
21: 4d 85 e4 test %r12,%r12
24: 0f 85 8d 00 00 00 jne 0xb7
* 2a: e8 ea 93 1f 00 call 0x1f9419 <-- trapping instruction
2f: 45 31 c9 xor %r9d,%r9d
32: 41 b8 01 00 00 00 mov $0x1,%r8d
38: 31 c9 xor %ecx,%ecx
3a: 48 rex.W
3b: 8d .byte 0x8d
3c: 05 .byte 0x5
3d: 00 00 add %al,(%rax)
---
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.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-11-12 3:46 UTC | newest]
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-- links below jump to the message on this page --
2022-11-16 15:25 [syzbot] WARNING in call_timer_fn syzbot
2022-11-16 18:29 ` Thomas Gleixner
2024-11-12 3:46 ` [syzbot] [bluetooth] " syzbot
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