[ OK ] Started OpenBSD Secure Shell server. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.117' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.268669][ T8379] FAULT_INJECTION: forcing a failure. [ 52.268669][ T8379] name failslab, interval 1, probability 0, space 0, times 1 [ 52.282288][ T8379] CPU: 1 PID: 8379 Comm: syz-executor223 Not tainted 5.12.0-syzkaller #0 [ 52.291177][ T8379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.301744][ T8379] Call Trace: [ 52.305027][ T8379] dump_stack+0x202/0x31e [ 52.309538][ T8379] ? show_regs_print_info+0x12/0x12 [ 52.314921][ T8379] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 52.321428][ T8379] ? __fs_reclaim_acquire+0x30/0x30 [ 52.327294][ T8379] ? __might_sleep+0x100/0x100 [ 52.332284][ T8379] should_fail+0x384/0x4b0 [ 52.336799][ T8379] ? __se_sys_io_uring_setup+0x1ff4/0x3100 [ 52.342771][ T8379] should_failslab+0x5/0x20 [ 52.347553][ T8379] kmem_cache_alloc_trace+0x6a/0x350 [ 52.353248][ T8379] ? alloc_pages_current+0x2e5/0x520 [ 52.359380][ T8379] __se_sys_io_uring_setup+0x1ff4/0x3100 [ 52.365309][ T8379] ? __context_tracking_exit+0x7a/0xd0 [ 52.371049][ T8379] ? __x64_sys_io_uring_setup+0x60/0x60 [ 52.376756][ T8379] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 52.383038][ T8379] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 52.389122][ T8379] ? lockdep_hardirqs_on+0x8d/0x130 [ 52.394402][ T8379] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 52.400633][ T8379] do_syscall_64+0x3f/0xb0 [ 52.405170][ T8379] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.411428][ T8379] RIP: 0033:0x43fa99 [ 52.415334][ T8379] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c4 ff ff ff f7 d8 64 89 01 48 [ 52.435478][ T8379] RSP: 002b:00007ffe79f6a2c8 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 [ 52.444148][ T8379] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 000000000043fa99 [ 52.453513][ T8379] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000345 [ 52.462129][ T8379] RBP: 0000000000000001 R08: 0000000000000001 R09: bfe829bde5bd92dc [ 52.470517][ T8379] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020ffd000 [ 52.479197][ T8379] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 52.490553][ T8379] ------------[ cut here ]------------ [ 52.496713][ T8379] WARNING: CPU: 0 PID: 8379 at fs/io_uring.c:7081 __se_sys_io_uring_setup+0x2059/0x3100 [ 52.507797][ T8379] Modules linked in: [ 52.512573][ T8379] CPU: 0 PID: 8379 Comm: syz-executor223 Not tainted 5.12.0-syzkaller #0 [ 52.522023][ T8379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.532534][ T8379] RIP: 0010:__se_sys_io_uring_setup+0x2059/0x3100 [ 52.540176][ T8379] Code: dc ff eb 05 e8 78 09 97 ff 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 ff e8 ce a1 dd ff 49 c7 07 00 00 00 00 <0f> 0b e9 e1 00 00 00 e8 4b 09 97 ff 49 8d 5c 24 10 48 89 d8 48 c1 [ 52.561563][ T8379] RSP: 0000:ffffc9000112fd00 EFLAGS: 00010246 [ 52.568377][ T8379] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802fee0000 [ 52.576842][ T8379] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888011441780 [ 52.586241][ T8379] RBP: ffffc9000112ff20 R08: 0000000000000dc0 R09: fffffbfff19bc9e3 [ 52.595950][ T8379] R10: fffffbfff19bc9e3 R11: 0000000000000000 R12: ffff88802452010c [ 52.606263][ T8379] R13: 1ffff11005c31501 R14: 0000000000000000 R15: ffff88802e18a808 [ 52.615259][ T8379] FS: 00000000009a23c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 52.625690][ T8379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.632699][ T8379] CR2: 00007f8918d3b000 CR3: 00000000133b0000 CR4: 00000000001506e0 [ 52.641294][ T8379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.649760][ T8379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.659451][ T8379] Call Trace: [ 52.663219][ T8379] ? __context_tracking_exit+0x7a/0xd0 [ 52.669551][ T8379] ? __x64_sys_io_uring_setup+0x60/0x60 [ 52.675910][ T8379] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 52.683540][ T8379] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 52.690488][ T8379] ? lockdep_hardirqs_on+0x8d/0x130 [ 52.696412][ T8379] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 52.704599][ T8379] do_syscall_64+0x3f/0xb0 [ 52.709262][ T8379] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.715535][ T8379] RIP: 0033:0x43fa99 [ 52.719660][ T8379] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c4 ff ff ff f7 d8 64 89 01 48 [ 52.741169][ T8379] RSP: 002b:00007ffe79f6a2c8 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 [ 52.750842][ T8379] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 000000000043fa99 [ 52.759828][ T8379] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000345 [ 52.768412][ T8379] RBP: 0000000000000001 R08: 0000000000000001 R09: bfe829bde5bd92dc [ 52.776909][ T8379] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020ffd000 [ 52.785261][ T8379] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 52.795105][ T8379] Kernel panic - not syncing: panic_on_warn set ... [ 52.802501][ T8379] CPU: 0 PID: 8379 Comm: syz-executor223 Not tainted 5.12.0-syzkaller #0 [ 52.811446][ T8379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.822901][ T8379] Call Trace: [ 52.826275][ T8379] dump_stack+0x202/0x31e [ 52.831048][ T8379] ? show_regs_print_info+0x12/0x12 [ 52.836337][ T8379] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 52.842796][ T8379] panic+0x2e1/0x850 [ 52.847094][ T8379] ? __kernel_text_address+0x93/0x100 [ 52.853024][ T8379] ? __warn+0x13e/0x270 [ 52.857275][ T8379] ? nmi_panic+0x90/0x90 [ 52.861524][ T8379] __warn+0x26a/0x270 [ 52.865868][ T8379] ? __se_sys_io_uring_setup+0x2059/0x3100 [ 52.872253][ T8379] ? __se_sys_io_uring_setup+0x2059/0x3100 [ 52.878931][ T8379] report_bug+0x1b1/0x2e0 [ 52.883822][ T8379] handle_bug+0x3d/0x70 [ 52.888375][ T8379] exc_invalid_op+0x16/0x40 [ 52.892978][ T8379] asm_exc_invalid_op+0x12/0x20 [ 52.898522][ T8379] RIP: 0010:__se_sys_io_uring_setup+0x2059/0x3100 [ 52.905609][ T8379] Code: dc ff eb 05 e8 78 09 97 ff 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 ff e8 ce a1 dd ff 49 c7 07 00 00 00 00 <0f> 0b e9 e1 00 00 00 e8 4b 09 97 ff 49 8d 5c 24 10 48 89 d8 48 c1 [ 52.926471][ T8379] RSP: 0000:ffffc9000112fd00 EFLAGS: 00010246 [ 52.932627][ T8379] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88802fee0000 [ 52.942989][ T8379] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888011441780 [ 52.951901][ T8379] RBP: ffffc9000112ff20 R08: 0000000000000dc0 R09: fffffbfff19bc9e3 [ 52.961178][ T8379] R10: fffffbfff19bc9e3 R11: 0000000000000000 R12: ffff88802452010c [ 52.970550][ T8379] R13: 1ffff11005c31501 R14: 0000000000000000 R15: ffff88802e18a808 [ 52.979199][ T8379] ? __context_tracking_exit+0x7a/0xd0 [ 52.985195][ T8379] ? __x64_sys_io_uring_setup+0x60/0x60 [ 52.990909][ T8379] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 52.997738][ T8379] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 53.004716][ T8379] ? lockdep_hardirqs_on+0x8d/0x130 [ 53.010380][ T8379] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 53.017125][ T8379] do_syscall_64+0x3f/0xb0 [ 53.021864][ T8379] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.028231][ T8379] RIP: 0033:0x43fa99 [ 53.032650][ T8379] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c4 ff ff ff f7 d8 64 89 01 48 [ 53.053849][ T8379] RSP: 002b:00007ffe79f6a2c8 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 [ 53.063209][ T8379] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 000000000043fa99 [ 53.073441][ T8379] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000345 [ 53.081714][ T8379] RBP: 0000000000000001 R08: 0000000000000001 R09: bfe829bde5bd92dc [ 53.090192][ T8379] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020ffd000 [ 53.099264][ T8379] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 53.110191][ T8379] Kernel Offset: disabled [ 53.115508][ T8379] Rebooting in 86400 seconds..