Warning: Permanently added '10.128.0.238' (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)[ ***] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ 19.575494][ T22] audit: type=1400 audit(1608867809.499:8): avc: denied { execmem } for pid=349 comm="syz-executor917" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 19.600495][ T350] incfs: Can't find or create .index dir in ./file1 [ 19.608517][ T350] BUG: Dentry 000000007f667ea2{i=0,n=.index} still in use (1) [unmount of overlay overlay] [ 19.618643][ T350] ------------[ cut here ]------------ [ 19.624203][ T350] WARNING: CPU: 0 PID: 350 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.632524][ T350] Kernel panic - not syncing: panic_on_warn set ... [ 19.639083][ T350] CPU: 0 PID: 350 Comm: syz-executor917 Not tainted 5.4.85-syzkaller-00188-g8657d5d6282f #0 [ 19.649102][ T350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.659221][ T350] Call Trace: [ 19.662484][ T350] dump_stack+0x1dd/0x24e [ 19.666779][ T350] ? devkmsg_release+0x11c/0x11c [ 19.671680][ T350] ? show_regs_print_info+0x12/0x12 [ 19.676840][ T350] ? vprintk_store+0x690/0x690 [ 19.681580][ T350] ? console_trylock+0x166/0x1c0 [ 19.686478][ T350] ? umount_check+0xc0/0x1c0 [ 19.691067][ T350] ? umount_check+0xc0/0x1c0 [ 19.695622][ T350] panic+0x285/0x750 [ 19.699477][ T350] ? __warn+0xfa/0x200 [ 19.703508][ T350] ? nmi_panic+0x90/0x90 [ 19.707715][ T350] ? devkmsg_release+0x11c/0x11c [ 19.712615][ T350] ? is_valid_bugaddr+0xa0/0x150 [ 19.717537][ T350] ? umount_check+0x179/0x1c0 [ 19.722180][ T350] __warn+0x1fd/0x200 [ 19.726123][ T350] ? umount_check+0x179/0x1c0 [ 19.730766][ T350] report_bug+0x390/0x4d0 [ 19.735060][ T350] ? umount_check+0x179/0x1c0 [ 19.739700][ T350] do_invalid_op+0x6e/0x110 [ 19.744166][ T350] invalid_op+0x1e/0x30 [ 19.748286][ T350] RIP: 0010:umount_check+0x179/0x1c0 [ 19.753533][ T350] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 63 3e 1d 85 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 27 54 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 [ 19.773118][ T350] RSP: 0018:ffff8881e8fafa50 EFLAGS: 00010296 [ 19.779146][ T350] RAX: 0000000000000059 RBX: ffffffff8548e758 RCX: f109591a4fe10b00 [ 19.787105][ T350] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 19.795069][ T350] RBP: ffff8881e8824420 R08: ffffffff814e3421 R09: ffffed103ee05e08 [ 19.803006][ T350] R10: ffffed103ee05e08 R11: 0000000000000000 R12: dffffc0000000000 [ 19.810943][ T350] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eff8b770 [ 19.818921][ T350] ? vprintk_emit+0x3b1/0x500 [ 19.823575][ T350] d_walk+0x2e9/0x570 [ 19.827518][ T350] ? __d_free+0x20/0x20 [ 19.831643][ T350] shrink_dcache_for_umount+0x8a/0x1b0 [ 19.837086][ T350] generic_shutdown_super+0x63/0x2a0 [ 19.842339][ T350] kill_anon_super+0x36/0x60 [ 19.846892][ T350] deactivate_locked_super+0xaf/0x100 [ 19.852227][ T350] deactivate_super+0x1b8/0x280 [ 19.857042][ T350] ? deactivate_locked_super+0x100/0x100 [ 19.862638][ T350] ? dput+0x4ed/0x5e0 [ 19.866585][ T350] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.871663][ T350] ? find_next_bit+0xd8/0x120 [ 19.876319][ T350] cleanup_mnt+0x432/0x4e0 [ 19.880701][ T350] task_work_run+0x176/0x1a0 [ 19.885286][ T350] do_exit+0xcc2/0x2830 [ 19.889410][ T350] ? mm_update_next_owner+0x5d0/0x5d0 [ 19.894746][ T350] ? __up_read+0x6f/0x1b0 [ 19.899039][ T350] ? kfree+0x12c/0x660 [ 19.903073][ T350] ? check_preemption_disabled+0x15a/0x330 [ 19.908841][ T350] ? debug_smp_processor_id+0x20/0x20 [ 19.914187][ T350] do_group_exit+0x155/0x2b0 [ 19.918739][ T350] __do_sys_exit_group+0x13/0x20 [ 19.923755][ T350] __se_sys_exit_group+0x10/0x10 [ 19.928656][ T350] __x64_sys_exit_group+0x37/0x40 [ 19.933641][ T350] do_syscall_64+0xcb/0x150 [ 19.938111][ T350] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.943977][ T350] RIP: 0033:0x43f808 [ 19.947845][ T350] Code: Bad RIP value. [ 19.952223][ T350] RSP: 002b:00007ffd50db58d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.960595][ T350] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000043f808 [ 19.968645][ T350] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 19.976593][ T350] RBP: 00000000004bf7b0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 19.984530][ T350] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 19.992478][ T350] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 20.001136][ T350] Kernel Offset: disabled [ 20.005434][ T350] Rebooting in 86400 seconds..