Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty4. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.10.12' (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)[ 18.430196][ T22] audit: type=1400 audit(1611925792.377:8): avc: denied { execmem } for pid=360 comm="syz-executor190" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 18.461402][ T363] incfs: Can't find or create .index dir in ./file0 [ 18.469808][ T363] BUG: Dentry 000000007364aa64{i=0,n=.index} still in use (1) [unmount of incremental-fs incremental-fs] [ 18.481251][ T363] ------------[ cut here ]------------ [ 18.486692][ T363] WARNING: CPU: 0 PID: 363 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 18.494990][ T363] Kernel panic - not syncing: panic_on_warn set ... [ 18.501546][ T363] CPU: 0 PID: 363 Comm: syz-executor190 Not tainted 5.4.93-syzkaller-00590-g1e5f5a14faba #0 [ 18.511582][ T363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.521608][ T363] Call Trace: [ 18.524886][ T363] dump_stack+0x1dd/0x24e [ 18.529199][ T363] ? devkmsg_release+0x11c/0x11c [ 18.534125][ T363] ? show_regs_print_info+0x12/0x12 [ 18.539291][ T363] ? vprintk_store+0x690/0x690 [ 18.544028][ T363] ? console_trylock+0x166/0x1c0 [ 18.548969][ T363] ? umount_check+0x120/0x1c0 [ 18.553612][ T363] ? umount_check+0x120/0x1c0 [ 18.558271][ T363] panic+0x285/0x750 [ 18.562141][ T363] ? __warn+0xfa/0x200 [ 18.566195][ T363] ? nmi_panic+0x90/0x90 [ 18.570408][ T363] ? devkmsg_release+0x11c/0x11c [ 18.575326][ T363] ? is_valid_bugaddr+0xa0/0x150 [ 18.580233][ T363] ? umount_check+0x179/0x1c0 [ 18.584877][ T363] __warn+0x1fd/0x200 [ 18.588832][ T363] ? umount_check+0x179/0x1c0 [ 18.593488][ T363] report_bug+0x390/0x4d0 [ 18.597796][ T363] ? umount_check+0x179/0x1c0 [ 18.602448][ T363] do_invalid_op+0x6e/0x110 [ 18.606923][ T363] invalid_op+0x1e/0x30 [ 18.611078][ T363] RIP: 0010:umount_check+0x179/0x1c0 [ 18.616354][ T363] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 63 55 1d 85 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 07 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 [ 18.635949][ T363] RSP: 0018:ffff8881e910f710 EFLAGS: 00010292 [ 18.642012][ T363] RAX: 0000000000000067 RBX: ffffffff8548f520 RCX: dd3296738f0bf900 [ 18.649976][ T363] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 18.657937][ T363] RBP: ffff8881e93f0420 R08: ffffffff814e47a1 R09: ffffed103ee05e08 [ 18.665904][ T363] R10: ffffed103ee05e08 R11: 0000000000000000 R12: dffffc0000000000 [ 18.673862][ T363] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eff5b440 [ 18.681830][ T363] ? vprintk_emit+0x3b1/0x500 [ 18.686486][ T363] d_walk+0x2e9/0x570 [ 18.690442][ T363] ? __d_free+0x20/0x20 [ 18.694616][ T363] shrink_dcache_for_umount+0x8a/0x1b0 [ 18.700080][ T363] generic_shutdown_super+0x63/0x2a0 [ 18.705343][ T363] incfs_kill_sb+0x3d/0x50 [ 18.709746][ T363] deactivate_locked_super+0xaf/0x100 [ 18.715095][ T363] deactivate_super+0x1b8/0x280 [ 18.719935][ T363] ? deactivate_locked_super+0x100/0x100 [ 18.725539][ T363] ? dput+0x4ed/0x5e0 [ 18.729505][ T363] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.734584][ T363] ? find_next_bit+0xd8/0x120 [ 18.739243][ T363] cleanup_mnt+0x432/0x4e0 [ 18.743647][ T363] task_work_run+0x176/0x1a0 [ 18.748210][ T363] do_exit+0xcc2/0x2830 [ 18.752352][ T363] ? mm_update_next_owner+0x5d0/0x5d0 [ 18.757696][ T363] ? check_preemption_disabled+0x15a/0x330 [ 18.763472][ T363] ? futex_exit_release+0xc0/0xc0 [ 18.768475][ T363] ? debug_smp_processor_id+0x20/0x20 [ 18.773814][ T363] ? stack_trace_snprint+0x150/0x150 [ 18.779072][ T363] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.784165][ T363] ? _raw_spin_lock_irqsave+0x210/0x210 [ 18.789690][ T363] do_group_exit+0x155/0x2b0 [ 18.794269][ T363] get_signal+0x13ec/0x1f00 [ 18.798850][ T363] ? ptrace_notify+0x340/0x340 [ 18.803621][ T363] do_signal+0x92/0x5d0 [ 18.807770][ T363] ? __se_sys_futex+0x34d/0x470 [ 18.812592][ T363] ? kfree+0x12c/0x660 [ 18.816633][ T363] ? signal_fault+0x1f0/0x1f0 [ 18.821284][ T363] ? ksys_mount+0xe0/0xf0 [ 18.825603][ T363] ? __x64_sys_futex+0x1d/0xf0 [ 18.830346][ T363] prepare_exit_to_usermode+0x207/0x310 [ 18.835863][ T363] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.841740][ T363] RIP: 0033:0x44aa19 [ 18.845614][ T363] Code: Bad RIP value. [ 18.849669][ T363] RSP: 002b:00007f5ecb84dcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 18.858083][ T363] RAX: fffffffffffffe00 RBX: 00000000006dcc28 RCX: 000000000044aa19 [ 18.866068][ T363] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dcc28 [ 18.874020][ T363] RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 [ 18.881984][ T363] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc2c [ 18.889978][ T363] R13: 00007fff2cfb214f R14: 00007f5ecb84e9c0 R15: 00000000006dcc2c [ 18.898015][ T363] Kernel Offset: disabled [ 18.902328][ T363] Rebooting in 86400 seconds..