[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty6. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.1.44' (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 (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)[ *] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (14s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[ 23.137469][ T22] audit: type=1400 audit(1608011092.521:8): avc: denied { execmem } for pid=359 comm="syz-executor255" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 23.164346][ T361] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 23.173706][ T361] incfs: Can't find or create .index dir in ./file0 [ 23.180906][ T361] BUG: Dentry 0000000032589b3f{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 23.190598][ T361] ------------[ cut here ]------------ [ 23.196043][ T361] WARNING: CPU: 1 PID: 361 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.204338][ T361] Kernel panic - not syncing: panic_on_warn set ... [ 23.210914][ T361] CPU: 1 PID: 361 Comm: syz-executor255 Not tainted 5.4.83-syzkaller-00109-g2149aa11b029 #0 [ 23.220936][ T361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.230973][ T361] Call Trace: [ 23.234233][ T361] dump_stack+0x1dd/0x24e [ 23.238527][ T361] ? devkmsg_release+0x11c/0x11c [ 23.243429][ T361] ? show_regs_print_info+0x12/0x12 [ 23.248591][ T361] ? vprintk_store+0x690/0x690 [ 23.253319][ T361] ? console_trylock+0x166/0x1c0 [ 23.258233][ T361] ? umount_check+0xe0/0x1c0 [ 23.262798][ T361] ? umount_check+0xe0/0x1c0 [ 23.267354][ T361] panic+0x285/0x750 [ 23.271214][ T361] ? __warn+0xfa/0x200 [ 23.275248][ T361] ? nmi_panic+0x90/0x90 [ 23.279466][ T361] ? devkmsg_release+0x11c/0x11c [ 23.284370][ T361] ? is_valid_bugaddr+0xa0/0x150 [ 23.289270][ T361] ? umount_check+0x179/0x1c0 [ 23.293923][ T361] __warn+0x1fd/0x200 [ 23.297868][ T361] ? umount_check+0x179/0x1c0 [ 23.302509][ T361] report_bug+0x390/0x4d0 [ 23.306817][ T361] ? umount_check+0x179/0x1c0 [ 23.311457][ T361] do_invalid_op+0x6e/0x110 [ 23.315925][ T361] invalid_op+0x1e/0x30 [ 23.320056][ T361] RIP: 0010:umount_check+0x179/0x1c0 [ 23.325318][ T361] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e3 3b 1d 85 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 57 53 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 [ 23.344899][ T361] RSP: 0000:ffff8881e8427a40 EFLAGS: 00010292 [ 23.350938][ T361] RAX: 0000000000000054 RBX: ffffffff8548a3b8 RCX: 6cd415de49735600 [ 23.358886][ T361] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 23.366823][ T361] RBP: ffff8881e8514420 R08: ffffffff814e3431 R09: ffffed103ee25e08 [ 23.374762][ T361] R10: ffffed103ee25e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.382700][ T361] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eff31220 [ 23.390648][ T361] ? vprintk_emit+0x3b1/0x500 [ 23.395304][ T361] d_walk+0x2e9/0x570 [ 23.399251][ T361] ? __d_free+0x20/0x20 [ 23.403417][ T361] shrink_dcache_for_umount+0x8a/0x1b0 [ 23.408856][ T361] generic_shutdown_super+0x63/0x2a0 [ 23.414155][ T361] kill_block_super+0x79/0xd0 [ 23.418800][ T361] deactivate_locked_super+0xaf/0x100 [ 23.424139][ T361] deactivate_super+0x1b8/0x280 [ 23.428961][ T361] ? deactivate_locked_super+0x100/0x100 [ 23.434560][ T361] ? dput+0x4ed/0x5e0 [ 23.438507][ T361] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.443584][ T361] ? find_next_bit+0xd8/0x120 [ 23.448264][ T361] cleanup_mnt+0x432/0x4e0 [ 23.452908][ T361] task_work_run+0x176/0x1a0 [ 23.457463][ T361] do_exit+0xcc2/0x2830 [ 23.461701][ T361] ? mm_update_next_owner+0x5d0/0x5d0 [ 23.467054][ T361] ? __up_read+0x6f/0x1b0 [ 23.471348][ T361] ? kfree+0x12c/0x660 [ 23.475382][ T361] ? check_preemption_disabled+0x15a/0x330 [ 23.481155][ T361] ? debug_smp_processor_id+0x20/0x20 [ 23.486493][ T361] do_group_exit+0x155/0x2b0 [ 23.491049][ T361] __do_sys_exit_group+0x13/0x20 [ 23.495975][ T361] __se_sys_exit_group+0x10/0x10 [ 23.500879][ T361] __x64_sys_exit_group+0x37/0x40 [ 23.505869][ T361] do_syscall_64+0xcb/0x150 [ 23.510341][ T361] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.516198][ T361] RIP: 0033:0x4437f8 [ 23.520072][ T361] Code: Bad RIP value. [ 23.524106][ T361] RSP: 002b:00007fff48315ff8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.532502][ T361] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004437f8 [ 23.540444][ T361] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 23.548405][ T361] RBP: 00000000004c3bd0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 23.556342][ T361] R10: 0000000001800008 R11: 0000000000000246 R12: 0000000000000001 [ 23.564298][ T361] R13: 00000000006d6180 R14: 0000000000000000 R15: 0000000000000000 [ 23.573011][ T361] Kernel Offset: disabled [ 23.577312][ T361] Rebooting in 86400 seconds..