[* ] A start job is running for dev-ttyS0.device (1min 28s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (1min 29s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (1min 29s / 1min 30s)[ TIME ] Timed out waiting for device dev-ttyS0.device. [DEPEND] Dependency failed for Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Warning: Permanently added '10.128.1.45' (ECDSA) to the list of known hosts. executing program [ 285.504070][ T22] audit: type=1400 audit(1615069318.190:8): avc: denied { execmem } for pid=343 comm="syz-executor094" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 285.530144][ T344] incfs: Can't find or create .index dir in ./file0 [ 285.543114][ T343] BUG: Dentry 00000000fd14ab76{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 285.552886][ T343] ------------[ cut here ]------------ [ 285.558323][ T343] WARNING: CPU: 1 PID: 343 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 285.566606][ T343] Kernel panic - not syncing: panic_on_warn set ... [ 285.573162][ T343] CPU: 1 PID: 343 Comm: syz-executor094 Not tainted 5.4.102-syzkaller-00363-g1bd00b1a96b5 #0 [ 285.583270][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 285.593389][ T343] Call Trace: [ 285.596696][ T343] dump_stack+0x1d8/0x24e [ 285.601080][ T343] ? devkmsg_release+0x11c/0x11c [ 285.605981][ T343] ? show_regs_print_info+0x12/0x12 [ 285.611181][ T343] ? vprintk_store+0x680/0x680 [ 285.615958][ T343] ? console_trylock+0x166/0x1c0 [ 285.620900][ T343] ? umount_check+0x100/0x1c0 [ 285.625584][ T343] ? umount_check+0x100/0x1c0 [ 285.630375][ T343] panic+0x285/0x740 [ 285.634252][ T343] ? __warn+0xfa/0x200 [ 285.638286][ T343] ? nmi_panic+0x90/0x90 [ 285.642510][ T343] ? devkmsg_release+0x11c/0x11c [ 285.647411][ T343] ? is_valid_bugaddr+0xa0/0x150 [ 285.652320][ T343] ? umount_check+0x179/0x1c0 [ 285.656983][ T343] __warn+0x1f1/0x200 [ 285.660938][ T343] ? umount_check+0x179/0x1c0 [ 285.665582][ T343] report_bug+0x380/0x4d0 [ 285.669914][ T343] ? umount_check+0x179/0x1c0 [ 285.674567][ T343] do_invalid_op+0x6e/0x110 [ 285.679040][ T343] invalid_op+0x1e/0x30 [ 285.683162][ T343] RIP: 0010:umount_check+0x179/0x1c0 [ 285.688412][ T343] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 00 d5 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 e7 31 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 [ 285.707978][ T343] RSP: 0018:ffff8881e8abfc58 EFLAGS: 00010282 [ 285.714011][ T343] RAX: 0000000000000055 RBX: ffffffff85fc5060 RCX: 5b5fd7ce1b560c00 [ 285.721953][ T343] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 285.729994][ T343] RBP: ffff8881f52c2420 R08: ffffffff814e69c7 R09: ffffed103ede5e08 [ 285.737980][ T343] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 285.745918][ T343] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efabf990 [ 285.753865][ T343] ? vprintk_emit+0x457/0x4c0 [ 285.758511][ T343] d_walk+0x2d9/0x540 [ 285.762468][ T343] ? __d_free+0x20/0x20 [ 285.766589][ T343] shrink_dcache_for_umount+0x8a/0x1a0 [ 285.772018][ T343] generic_shutdown_super+0x63/0x2a0 [ 285.777269][ T343] kill_block_super+0x79/0xd0 [ 285.781922][ T343] deactivate_locked_super+0xaf/0x100 [ 285.787266][ T343] deactivate_super+0x1b3/0x270 [ 285.792092][ T343] ? deactivate_locked_super+0x100/0x100 [ 285.797688][ T343] ? dput+0x4de/0x5d0 [ 285.801649][ T343] ? _raw_spin_lock_irqsave+0x210/0x210 [ 285.807160][ T343] ? find_next_bit+0xc6/0x110 [ 285.811803][ T343] cleanup_mnt+0x432/0x4e0 [ 285.816186][ T343] task_work_run+0x186/0x1b0 [ 285.820916][ T343] prepare_exit_to_usermode+0x2b0/0x310 [ 285.826427][ T343] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 285.832286][ T343] RIP: 0033:0x4467f7 [ 285.836147][ T343] Code: 06 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c4 ff ff ff f7 d8 64 89 01 48 [ 285.855716][ T343] RSP: 002b:00007fffc71f73c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 285.864103][ T343] RAX: 0000000000000000 RBX: 0000000000045b28 RCX: 00000000004467f7 [ 285.872151][ T343] RDX: 00007fffc71f7489 RSI: 0000000000000002 RDI: 00007fffc71f7480 [ 285.880086][ T343] RBP: 00007fffc71f7480 R08: 00000000ffffffff R09: 00007fffc71f7260 [ 285.888021][ T343] R10: 0000000001bc5723 R11: 0000000000000202 R12: 00007fffc71f84f0 [ 285.895974][ T343] R13: 0000000001bc56b0 R14: 00007fffc71f73f0 R15: 0000000000000001 [ 285.904586][ T343] Kernel Offset: disabled [ 285.908911][ T343] Rebooting in 86400 seconds..