Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty3. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.10.46' (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 (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)[ 18.824025][ T22] audit: type=1400 audit(1608670881.267:8): avc: denied { execmem } for pid=358 comm="syz-executor188" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 18.851648][ T360] incfs: Can't find or create .index dir in ./file0 [ 18.858802][ T360] BUG: Dentry 00000000bb33c990{i=0,n=.index} still in use (1) [unmount of devpts devpts] [ 18.868763][ T360] ------------[ cut here ]------------ [ 18.874211][ T360] WARNING: CPU: 0 PID: 360 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 18.882518][ T360] Kernel panic - not syncing: panic_on_warn set ... [ 18.889078][ T360] CPU: 0 PID: 360 Comm: syz-executor188 Not tainted 5.4.85-syzkaller-00188-g8657d5d6282f #0 [ 18.899105][ T360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.909155][ T360] Call Trace: [ 18.912418][ T360] dump_stack+0x1dd/0x24e [ 18.916806][ T360] ? devkmsg_release+0x11c/0x11c [ 18.921729][ T360] ? show_regs_print_info+0x12/0x12 [ 18.926910][ T360] ? vprintk_store+0x690/0x690 [ 18.931648][ T360] ? console_trylock+0x166/0x1c0 [ 18.936567][ T360] ? umount_check+0xc0/0x1c0 [ 18.941126][ T360] ? umount_check+0xc0/0x1c0 [ 18.945707][ T360] panic+0x285/0x750 [ 18.949574][ T360] ? __warn+0xfa/0x200 [ 18.953612][ T360] ? nmi_panic+0x90/0x90 [ 18.957823][ T360] ? devkmsg_release+0x11c/0x11c [ 18.962729][ T360] ? is_valid_bugaddr+0xa0/0x150 [ 18.967635][ T360] ? umount_check+0x179/0x1c0 [ 18.972281][ T360] __warn+0x1fd/0x200 [ 18.976232][ T360] ? umount_check+0x179/0x1c0 [ 18.980877][ T360] report_bug+0x390/0x4d0 [ 18.985178][ T360] ? umount_check+0x179/0x1c0 [ 18.989824][ T360] do_invalid_op+0x6e/0x110 [ 18.994312][ T360] invalid_op+0x1e/0x30 [ 18.998439][ T360] RIP: 0010:umount_check+0x179/0x1c0 [ 19.003689][ T360] 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 [ 19.023402][ T360] RSP: 0018:ffff8881ec5ffa48 EFLAGS: 00010286 [ 19.029441][ T360] RAX: 0000000000000057 RBX: ffffffff8547f6b8 RCX: 4e31a831340f5c00 [ 19.037384][ T360] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 19.045349][ T360] RBP: ffff8881e8ac5420 R08: ffffffff814e3421 R09: ffffed103ee05e08 [ 19.053303][ T360] R10: ffffed103ee05e08 R11: 0000000000000000 R12: dffffc0000000000 [ 19.061254][ T360] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eff3cbb0 [ 19.069209][ T360] ? vprintk_emit+0x3b1/0x500 [ 19.073865][ T360] d_walk+0x2e9/0x570 [ 19.077823][ T360] ? __d_free+0x20/0x20 [ 19.081953][ T360] shrink_dcache_for_umount+0x8a/0x1b0 [ 19.087401][ T360] generic_shutdown_super+0x63/0x2a0 [ 19.092693][ T360] kill_litter_super+0x71/0xa0 [ 19.097428][ T360] deactivate_locked_super+0xaf/0x100 [ 19.102769][ T360] deactivate_super+0x1b8/0x280 [ 19.107590][ T360] ? deactivate_locked_super+0x100/0x100 [ 19.113192][ T360] ? dput+0x4fb/0x5e0 [ 19.117160][ T360] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.122266][ T360] ? find_next_bit+0xd8/0x120 [ 19.126910][ T360] cleanup_mnt+0x432/0x4e0 [ 19.131315][ T360] task_work_run+0x176/0x1a0 [ 19.135893][ T360] do_exit+0xcc2/0x2830 [ 19.140024][ T360] ? mm_update_next_owner+0x5d0/0x5d0 [ 19.145366][ T360] ? __up_read+0x6f/0x1b0 [ 19.149665][ T360] ? kfree+0x12c/0x660 [ 19.153703][ T360] ? check_preemption_disabled+0x15a/0x330 [ 19.159478][ T360] ? debug_smp_processor_id+0x20/0x20 [ 19.164817][ T360] do_group_exit+0x155/0x2b0 [ 19.169385][ T360] __do_sys_exit_group+0x13/0x20 [ 19.174296][ T360] __se_sys_exit_group+0x10/0x10 [ 19.179207][ T360] __x64_sys_exit_group+0x37/0x40 [ 19.184206][ T360] do_syscall_64+0xcb/0x150 [ 19.188680][ T360] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.194543][ T360] RIP: 0033:0x443958 [ 19.198445][ T360] Code: Bad RIP value. [ 19.202487][ T360] RSP: 002b:00007ffc24b11118 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.210876][ T360] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000443958 [ 19.218822][ T360] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 19.226781][ T360] RBP: 00000000004c39d0 R08: 00000000000000e7 R09: ffffffffffffffd4 [ 19.234727][ T360] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 19.242670][ T360] R13: 00000000006d6180 R14: 0000000000000000 R15: 0000000000000000 [ 19.251276][ T360] Kernel Offset: disabled [ 19.255581][ T360] Rebooting in 86400 seconds..