[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 71.272554][ T6541] FAULT_INJECTION: forcing a failure. [ 71.272554][ T6541] name failslab, interval 1, probability 0, space 0, times 1 [ 71.285919][ T6541] CPU: 1 PID: 6541 Comm: syz-executor483 Not tainted 5.15.0-rc7-syzkaller #0 [ 71.294697][ T6541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.304790][ T6541] Call Trace: [ 71.308065][ T6541] dump_stack_lvl+0xcd/0x134 [ 71.312662][ T6541] should_fail.cold+0x5/0xa [ 71.317150][ T6541] ? __kernfs_new_node+0xd4/0x8b0 [ 71.322160][ T6541] should_failslab+0x5/0x10 [ 71.326644][ T6541] kmem_cache_alloc+0x5e/0x390 [ 71.331571][ T6541] __kernfs_new_node+0xd4/0x8b0 [ 71.336430][ T6541] ? kernfs_path_from_node+0x60/0x60 [ 71.341707][ T6541] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.347680][ T6541] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 71.353660][ T6541] kernfs_create_dir_ns+0x9c/0x220 [ 71.358767][ T6541] sysfs_create_dir_ns+0x128/0x290 [ 71.363864][ T6541] ? sysfs_create_mount_point+0xb0/0xb0 [ 71.369392][ T6541] ? rcu_read_lock_sched_held+0x3a/0x70 [ 71.374922][ T6541] ? kfree+0x1de/0x550 [ 71.378972][ T6541] ? device_add_disk+0x548/0xfc0 [ 71.383896][ T6541] kobject_add_internal+0x2d2/0xa60 [ 71.389090][ T6541] kobject_init_and_add+0x101/0x160 [ 71.394269][ T6541] ? kobject_create_and_add+0xb0/0xb0 [ 71.399626][ T6541] ? wait_for_completion_io+0x280/0x280 [ 71.405164][ T6541] ? mark_held_locks+0x9f/0xe0 [ 71.409937][ T6541] ? lockdep_hardirqs_on+0x79/0x100 [ 71.415126][ T6541] blk_integrity_add+0x5b/0xa0 [ 71.419883][ T6541] device_add_disk+0x550/0xfc0 [ 71.424651][ T6541] loop_add+0x753/0x960 [ 71.428812][ T6541] loop_control_ioctl+0x130/0x4a0 [ 71.433822][ T6541] ? loop_probe+0x80/0x80 [ 71.438141][ T6541] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.444376][ T6541] ? loop_probe+0x80/0x80 [ 71.448693][ T6541] __x64_sys_ioctl+0x193/0x200 [ 71.453497][ T6541] do_syscall_64+0x35/0xb0 [ 71.457898][ T6541] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.463777][ T6541] RIP: 0033:0x7f476fdaf689 [ 71.468175][ T6541] 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 c0 ff ff ff f7 d8 64 89 01 48 [ 71.487776][ T6541] RSP: 002b:00007ffccbcaaeb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 71.496167][ T6541] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f476fdaf689 [ 71.504117][ T6541] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 71.512071][ T6541] RBP: 00007ffccbcaaec0 R08: 0000000000000002 R09: 00007f476f003038 [ 71.520022][ T6541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 71.527981][ T6541] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 71.537092][ T6541] kobject_add_internal failed for integrity (error: -12 parent: loop0) [ 71.548381][ T6541] ------------[ cut here ]------------ [ 71.553944][ T6541] WARNING: CPU: 1 PID: 6541 at block/genhd.c:538 device_add_disk+0x60b/0xfc0 [ 71.562807][ T6541] Modules linked in: [ 71.566703][ T6541] CPU: 1 PID: 6541 Comm: syz-executor483 Not tainted 5.15.0-rc7-syzkaller #0 [ 71.575523][ T6541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.585642][ T6541] RIP: 0010:device_add_disk+0x60b/0xfc0 [ 71.591204][ T6541] Code: 8e ec 07 00 00 8b 5d 00 bf 03 01 00 00 89 de e8 db 20 ad fd 81 fb 03 01 00 00 0f 85 69 fd ff ff e9 22 fd ff ff e8 85 19 ad fd <0f> 0b 41 bc 01 00 00 00 e9 6a fd ff ff e8 73 19 ad fd 0f 0b 41 bc [ 71.610890][ T6541] RSP: 0018:ffffc900012efdb8 EFLAGS: 00010293 [ 71.617022][ T6541] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 71.625069][ T6541] RDX: ffff888011f8b900 RSI: ffffffff83c9d39b RDI: 0000000000000003 [ 71.633106][ T6541] RBP: ffff888025cbb000 R08: 0000000000000000 R09: ffff8880b9d32a0b [ 71.641080][ T6541] R10: ffffffff83c9d109 R11: 0000000000000000 R12: 00000000fffffff4 [ 71.649117][ T6541] R13: ffff88801cc950c8 R14: ffff888025cbb008 R15: ffff888017585280 [ 71.657393][ T6541] FS: 0000555555f61300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 71.666437][ T6541] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.673120][ T6541] CR2: 0000000020000010 CR3: 0000000012791000 CR4: 00000000003506e0 [ 71.681112][ T6541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.689209][ T6541] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.697431][ T6541] Call Trace: [ 71.700708][ T6541] loop_add+0x753/0x960 [ 71.704942][ T6541] loop_control_ioctl+0x130/0x4a0 [ 71.709972][ T6541] ? loop_probe+0x80/0x80 [ 71.714362][ T6541] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.720609][ T6541] ? loop_probe+0x80/0x80 [ 71.725027][ T6541] __x64_sys_ioctl+0x193/0x200 [ 71.729799][ T6541] do_syscall_64+0x35/0xb0 [ 71.734271][ T6541] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.740173][ T6541] RIP: 0033:0x7f476fdaf689 [ 71.744854][ T6541] 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 c0 ff ff ff f7 d8 64 89 01 48 [ 71.764575][ T6541] RSP: 002b:00007ffccbcaaeb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 71.773091][ T6541] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f476fdaf689 [ 71.781067][ T6541] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 71.789115][ T6541] RBP: 00007ffccbcaaec0 R08: 0000000000000002 R09: 00007f476f003038 [ 71.797243][ T6541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 71.805312][ T6541] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 71.813396][ T6541] Kernel panic - not syncing: panic_on_warn set ... [ 71.819979][ T6541] CPU: 1 PID: 6541 Comm: syz-executor483 Not tainted 5.15.0-rc7-syzkaller #0 [ 71.828734][ T6541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.838777][ T6541] Call Trace: [ 71.842061][ T6541] dump_stack_lvl+0xcd/0x134 [ 71.846655][ T6541] panic+0x2b0/0x6dd [ 71.850549][ T6541] ? __warn_printk+0xf3/0xf3 [ 71.855154][ T6541] ? __warn.cold+0x1a/0x44 [ 71.859568][ T6541] ? device_add_disk+0x60b/0xfc0 [ 71.864511][ T6541] __warn.cold+0x35/0x44 [ 71.868754][ T6541] ? device_add_disk+0x60b/0xfc0 [ 71.873700][ T6541] report_bug+0x1bd/0x210 [ 71.878028][ T6541] handle_bug+0x3c/0x60 [ 71.882191][ T6541] exc_invalid_op+0x14/0x40 [ 71.886691][ T6541] asm_exc_invalid_op+0x12/0x20 [ 71.891552][ T6541] RIP: 0010:device_add_disk+0x60b/0xfc0 [ 71.897102][ T6541] Code: 8e ec 07 00 00 8b 5d 00 bf 03 01 00 00 89 de e8 db 20 ad fd 81 fb 03 01 00 00 0f 85 69 fd ff ff e9 22 fd ff ff e8 85 19 ad fd <0f> 0b 41 bc 01 00 00 00 e9 6a fd ff ff e8 73 19 ad fd 0f 0b 41 bc [ 71.916803][ T6541] RSP: 0018:ffffc900012efdb8 EFLAGS: 00010293 [ 71.922868][ T6541] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 [ 71.930832][ T6541] RDX: ffff888011f8b900 RSI: ffffffff83c9d39b RDI: 0000000000000003 [ 71.938795][ T6541] RBP: ffff888025cbb000 R08: 0000000000000000 R09: ffff8880b9d32a0b [ 71.946767][ T6541] R10: ffffffff83c9d109 R11: 0000000000000000 R12: 00000000fffffff4 [ 71.954744][ T6541] R13: ffff88801cc950c8 R14: ffff888025cbb008 R15: ffff888017585280 [ 71.962725][ T6541] ? device_add_disk+0x379/0xfc0 [ 71.967681][ T6541] ? device_add_disk+0x60b/0xfc0 [ 71.972629][ T6541] ? device_add_disk+0x60b/0xfc0 [ 71.977583][ T6541] loop_add+0x753/0x960 [ 71.981745][ T6541] loop_control_ioctl+0x130/0x4a0 [ 71.986771][ T6541] ? loop_probe+0x80/0x80 [ 71.991102][ T6541] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.997350][ T6541] ? loop_probe+0x80/0x80 [ 72.001677][ T6541] __x64_sys_ioctl+0x193/0x200 [ 72.006441][ T6541] do_syscall_64+0x35/0xb0 [ 72.010855][ T6541] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.016752][ T6541] RIP: 0033:0x7f476fdaf689 [ 72.021162][ T6541] 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 c0 ff ff ff f7 d8 64 89 01 48 [ 72.040765][ T6541] RSP: 002b:00007ffccbcaaeb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 72.049176][ T6541] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f476fdaf689 [ 72.057143][ T6541] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 72.065107][ T6541] RBP: 00007ffccbcaaec0 R08: 0000000000000002 R09: 00007f476f003038 [ 72.073082][ T6541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 72.081061][ T6541] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 72.089408][ T6541] Kernel Offset: disabled [ 72.093778][ T6541] Rebooting in 86400 seconds..