[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.140' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 84.919843][ T35] audit: type=1400 audit(1611326373.602:8): avc: denied { execmem } for pid=8470 comm="syz-executor518" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 85.184809][ T8572] ------------[ cut here ]------------ [ 85.190422][ T8572] WARNING: CPU: 0 PID: 8572 at fs/io_uring.c:8917 io_disable_sqo_submit+0x13d/0x180 executing program [ 85.257042][ T8572] Modules linked in: executing program executing program [ 85.290746][ T8572] CPU: 1 PID: 8572 Comm: syz-executor518 Not tainted 5.11.0-rc4-syzkaller #0 [ 85.328285][ T8572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program [ 85.426921][ T8572] RIP: 0010:io_disable_sqo_submit+0x13d/0x180 [ 85.453897][ T8572] Code: e0 07 83 c0 03 38 d0 7c 04 84 d2 75 2e 83 8b 14 01 00 00 01 4c 89 e7 e8 d1 6d 25 07 5b 5d 41 5c e9 48 22 9b ff e8 43 22 9b ff <0f> 0b e9 00 ff ff ff e8 87 a1 dd ff e9 37 ff ff ff e8 4d a1 dd ff executing program executing program executing program [ 85.555169][ T8572] RSP: 0018:ffffc90001c17df0 EFLAGS: 00010293 executing program executing program [ 85.609930][ T8572] RAX: 0000000000000000 RBX: ffff88801c409000 RCX: 0000000000000000 executing program executing program [ 85.663226][ T8572] RDX: ffff8880287e8040 RSI: ffffffff81d7aa8d RDI: ffff88801c4090d0 executing program executing program [ 85.723191][ T8572] RBP: ffff8880198a1780 R08: 0000000000000000 R09: 0000000012c8a801 executing program [ 85.771088][ T8572] R10: ffffffff81d7ad45 R11: 0000000000000001 R12: ffff88801c409000 [ 85.795335][ T8572] R13: ffff888012c8a801 R14: ffff88801c409040 R15: ffff88801c4090d0 [ 85.807057][ T8572] FS: 00007f60e950b700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 executing program executing program executing program executing program [ 85.879541][ T8572] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 executing program [ 85.932816][ T8572] CR2: 00007f60e950adb8 CR3: 0000000015b41000 CR4: 00000000001506e0 executing program executing program [ 85.997565][ T8572] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 executing program executing program [ 86.043877][ T8572] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 executing program [ 86.093012][ T8572] Call Trace: executing program [ 86.123151][ T8572] io_uring_flush+0x28b/0x3a0 executing program executing program [ 86.154926][ T8572] ? io_disable_sqo_submit+0x180/0x180 [ 86.175444][ T8572] filp_close+0xb4/0x170 executing program [ 86.207621][ T8572] do_dup2+0x294/0x520 executing program executing program executing program [ 86.239445][ T8572] ksys_dup3+0x22f/0x360 [ 86.277847][ T8572] __x64_sys_dup2+0x71/0x3a0 executing program executing program [ 86.319110][ T8572] do_syscall_64+0x2d/0x70 [ 86.332992][ T8572] entry_SYSCALL_64_after_hwframe+0x44/0xa9 executing program executing program [ 86.409982][ T8572] RIP: 0033:0x447019 executing program executing program [ 86.430745][ T8572] Code: e8 0c e8 ff ff 48 83 c4 18 c3 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 0f 83 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 executing program executing program executing program executing program executing program executing program [ 86.576078][ T8572] RSP: 002b:00007f60e950ace8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 executing program executing program [ 86.656239][ T8572] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000447019 [ 86.684007][ T8572] RDX: 0000000000447019 RSI: 0000000000000003 RDI: 0000000000000005 executing program executing program executing program executing program [ 86.715957][ T8572] RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 [ 86.749204][ T8572] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c [ 86.798064][ T8572] R13: 00007ffc5b18d21f R14: 00007f60e950b9c0 R15: 00000000006dbc30 [ 86.838756][ T8572] Kernel panic - not syncing: panic_on_warn set ... [ 86.845583][ T8572] CPU: 0 PID: 8572 Comm: syz-executor518 Not tainted 5.11.0-rc4-syzkaller #0 [ 86.854383][ T8572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.864554][ T8572] Call Trace: [ 86.867858][ T8572] dump_stack+0x107/0x163 [ 86.872748][ T8572] panic+0x306/0x73d [ 86.876674][ T8572] ? __warn_printk+0xf3/0xf3 [ 86.881298][ T8572] ? __warn.cold+0x1a/0x44 [ 86.885762][ T8572] ? io_disable_sqo_submit+0x13d/0x180 [ 86.891246][ T8572] __warn.cold+0x35/0x44 [ 86.895517][ T8572] ? io_disable_sqo_submit+0x13d/0x180 [ 86.901470][ T8572] report_bug+0x1bd/0x210 [ 86.907594][ T8572] handle_bug+0x3c/0x60 [ 86.912045][ T8572] exc_invalid_op+0x14/0x40 [ 86.917212][ T8572] asm_exc_invalid_op+0x12/0x20 [ 86.922114][ T8572] RIP: 0010:io_disable_sqo_submit+0x13d/0x180 [ 86.928215][ T8572] Code: e0 07 83 c0 03 38 d0 7c 04 84 d2 75 2e 83 8b 14 01 00 00 01 4c 89 e7 e8 d1 6d 25 07 5b 5d 41 5c e9 48 22 9b ff e8 43 22 9b ff <0f> 0b e9 00 ff ff ff e8 87 a1 dd ff e9 37 ff ff ff e8 4d a1 dd ff [ 86.947944][ T8572] RSP: 0018:ffffc90001c17df0 EFLAGS: 00010293 [ 86.954066][ T8572] RAX: 0000000000000000 RBX: ffff88801c409000 RCX: 0000000000000000 [ 86.962061][ T8572] RDX: ffff8880287e8040 RSI: ffffffff81d7aa8d RDI: ffff88801c4090d0 [ 86.970057][ T8572] RBP: ffff8880198a1780 R08: 0000000000000000 R09: 0000000012c8a801 [ 86.978056][ T8572] R10: ffffffff81d7ad45 R11: 0000000000000001 R12: ffff88801c409000 [ 86.986074][ T8572] R13: ffff888012c8a801 R14: ffff88801c409040 R15: ffff88801c4090d0 [ 86.994572][ T8572] ? io_uring_flush+0x275/0x3a0 [ 86.999463][ T8572] ? io_disable_sqo_submit+0x13d/0x180 [ 87.004979][ T8572] io_uring_flush+0x28b/0x3a0 [ 87.010126][ T8572] ? io_disable_sqo_submit+0x180/0x180 [ 87.015799][ T8572] filp_close+0xb4/0x170 [ 87.020077][ T8572] do_dup2+0x294/0x520 [ 87.024183][ T8572] ksys_dup3+0x22f/0x360 [ 87.028456][ T8572] __x64_sys_dup2+0x71/0x3a0 [ 87.033081][ T8572] do_syscall_64+0x2d/0x70 [ 87.037538][ T8572] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 87.043459][ T8572] RIP: 0033:0x447019 [ 87.047376][ T8572] Code: e8 0c e8 ff ff 48 83 c4 18 c3 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 0f 83 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 87.067007][ T8572] RSP: 002b:00007f60e950ace8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 [ 87.075486][ T8572] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000447019 [ 87.083927][ T8572] RDX: 0000000000447019 RSI: 0000000000000003 RDI: 0000000000000005 [ 87.092993][ T8572] RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 [ 87.101015][ T8572] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c [ 87.109043][ T8572] R13: 00007ffc5b18d21f R14: 00007f60e950b9c0 R15: 00000000006dbc30 [ 87.117956][ T8572] Kernel Offset: disabled [ 87.124599][ T8572] Rebooting in 86400 seconds..