Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started Permit User Sessions. [ 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 OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. executing program [* ] A start job is running for dev-ttyS0.device (8s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (9s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ 18.263739][ T22] audit: type=1400 audit(1611616653.476:8): avc: denied { execmem } for pid=367 comm="syz-executor970" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 18.291680][ T368] erofs: (device loop0): mounted with opts: , root inode @ nid 36. [ 18.300107][ T368] incfs: Can't find or create .index dir in ./file0 [ 18.308239][ T368] BUG: Dentry 0000000005a33b1b{i=0,n=.index} still in use (1) [unmount of erofs loop0] [ 18.318152][ T368] ------------[ cut here ]------------ [ 18.323635][ T368] WARNING: CPU: 1 PID: 368 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 18.331931][ T368] Kernel panic - not syncing: panic_on_warn set ... [ 18.338514][ T368] CPU: 1 PID: 368 Comm: syz-executor970 Not tainted 5.4.92-syzkaller-00473-g18b1db92afb1 #0 [ 18.348892][ T368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.359084][ T368] Call Trace: [ 18.362357][ T368] dump_stack+0x1dd/0x24e [ 18.366721][ T368] ? devkmsg_release+0x11c/0x11c [ 18.371639][ T368] ? show_regs_print_info+0x12/0x12 [ 18.376808][ T368] ? vprintk_store+0x690/0x690 [ 18.381556][ T368] ? console_trylock+0x166/0x1c0 [ 18.386479][ T368] ? umount_check+0x170/0x1c0 [ 18.391138][ T368] ? umount_check+0x170/0x1c0 [ 18.395796][ T368] panic+0x285/0x750 [ 18.399679][ T368] ? __warn+0xfa/0x200 [ 18.403718][ T368] ? nmi_panic+0x90/0x90 [ 18.407961][ T368] ? devkmsg_release+0x11c/0x11c [ 18.412890][ T368] ? is_valid_bugaddr+0xa0/0x150 [ 18.417802][ T368] ? umount_check+0x179/0x1c0 [ 18.422555][ T368] __warn+0x1fd/0x200 [ 18.426593][ T368] ? umount_check+0x179/0x1c0 [ 18.431363][ T368] report_bug+0x390/0x4d0 [ 18.435679][ T368] ? umount_check+0x179/0x1c0 [ 18.440341][ T368] do_invalid_op+0x6e/0x110 [ 18.444999][ T368] invalid_op+0x1e/0x30 [ 18.449318][ T368] RIP: 0010:umount_check+0x179/0x1c0 [ 18.454576][ T368] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 23 58 1d 85 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 36 b0 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff [ 18.474542][ T368] RSP: 0018:ffff8881e8737a18 EFLAGS: 00010286 [ 18.480594][ T368] RAX: 0000000000000055 RBX: ffffffff8549b420 RCX: 61f18ff17dda2e00 [ 18.488543][ T368] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 18.496502][ T368] RBP: ffff8881e801b420 R08: ffffffff814e45f1 R09: ffffed103ee25e08 [ 18.505285][ T368] R10: ffffed103ee25e08 R11: 0000000000000000 R12: dffffc0000000000 [ 18.513229][ T368] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efff7cc0 [ 18.521184][ T368] ? vprintk_emit+0x3b1/0x500 [ 18.525852][ T368] d_walk+0x2e9/0x570 [ 18.529806][ T368] ? __d_free+0x20/0x20 [ 18.533945][ T368] shrink_dcache_for_umount+0x8a/0x1b0 [ 18.539397][ T368] generic_shutdown_super+0x63/0x2a0 [ 18.544662][ T368] kill_block_super+0x79/0xd0 [ 18.549341][ T368] erofs_kill_sb+0x5b/0xc0 [ 18.553759][ T368] deactivate_locked_super+0xaf/0x100 [ 18.559199][ T368] deactivate_super+0x1b8/0x280 [ 18.564028][ T368] ? deactivate_locked_super+0x100/0x100 [ 18.569671][ T368] ? dput+0x4ed/0x5e0 [ 18.573632][ T368] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.578747][ T368] ? find_next_bit+0xd8/0x120 [ 18.583432][ T368] cleanup_mnt+0x432/0x4e0 [ 18.587843][ T368] task_work_run+0x176/0x1a0 [ 18.592455][ T368] do_exit+0xcc2/0x2830 [ 18.596617][ T368] ? mm_update_next_owner+0x5d0/0x5d0 [ 18.601982][ T368] ? __up_read+0x6f/0x1b0 [ 18.606282][ T368] ? __down_read+0x210/0x210 [ 18.610854][ T368] ? check_preemption_disabled+0x15a/0x330 [ 18.616630][ T368] ? debug_smp_processor_id+0x20/0x20 [ 18.621993][ T368] do_group_exit+0x155/0x2b0 [ 18.626567][ T368] ? do_user_addr_fault+0x6dd/0xb10 [ 18.631758][ T368] __do_sys_exit_group+0x13/0x20 [ 18.636968][ T368] __se_sys_exit_group+0x10/0x10 [ 18.641892][ T368] __x64_sys_exit_group+0x37/0x40 [ 18.646902][ T368] do_syscall_64+0xcb/0x150 [ 18.651389][ T368] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.657267][ T368] RIP: 0033:0x443738 [ 18.661248][ T368] Code: Bad RIP value. [ 18.665401][ T368] RSP: 002b:00007ffc49cfb618 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 18.673818][ T368] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000443738 [ 18.681786][ T368] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 18.689779][ T368] RBP: 00000000004c42b0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 18.697737][ T368] R10: 0000000000018010 R11: 0000000000000246 R12: 0000000000000001 [ 18.705765][ T368] R13: 00000000006d6180 R14: 0000000000000000 R15: 0000000000000000 [ 18.714367][ T368] Kernel Offset: disabled [ 18.718686][ T368] Rebooting in 86400 seconds..