[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty4. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.1.39' (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 (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 (15s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[ 23.430388][ T22] audit: type=1400 audit(1613942674.155:8): avc: denied { execmem } for pid=336 comm="syz-executor688" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 23.458811][ T338] incfs: Can't find or create .index dir in ./file0 [ 23.467211][ T338] BUG: Dentry 0000000059391ac4{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 23.477039][ T338] ------------[ cut here ]------------ [ 23.482519][ T338] WARNING: CPU: 0 PID: 338 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.490809][ T338] Kernel panic - not syncing: panic_on_warn set ... [ 23.497362][ T338] CPU: 0 PID: 338 Comm: syz-executor688 Not tainted 5.4.99-syzkaller-00346-g35f4b1b90596 #0 [ 23.507383][ T338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.517402][ T338] Call Trace: [ 23.520748][ T338] dump_stack+0x1d8/0x24e [ 23.525045][ T338] ? devkmsg_release+0x11c/0x11c [ 23.529949][ T338] ? show_regs_print_info+0x12/0x12 [ 23.535114][ T338] ? vprintk_store+0x680/0x680 [ 23.539842][ T338] ? console_trylock+0x166/0x1c0 [ 23.544745][ T338] ? umount_check+0x120/0x1c0 [ 23.549430][ T338] ? umount_check+0x120/0x1c0 [ 23.554074][ T338] panic+0x285/0x740 [ 23.557954][ T338] ? __warn+0xfa/0x200 [ 23.561999][ T338] ? nmi_panic+0x90/0x90 [ 23.566211][ T338] ? devkmsg_release+0x11c/0x11c [ 23.571112][ T338] ? is_valid_bugaddr+0xa0/0x150 [ 23.576016][ T338] ? umount_check+0x179/0x1c0 [ 23.580678][ T338] __warn+0x1f1/0x200 [ 23.580687][ T338] ? umount_check+0x179/0x1c0 [ 23.580699][ T338] report_bug+0x380/0x4d0 [ 23.593691][ T338] ? umount_check+0x179/0x1c0 [ 23.598335][ T338] do_invalid_op+0x6e/0x110 [ 23.602806][ T338] invalid_op+0x1e/0x30 [ 23.606929][ T338] RIP: 0010:umount_check+0x179/0x1c0 [ 23.612179][ T338] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 40 ce e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 87 42 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 [ 23.631747][ T338] RSP: 0018:ffff8881e9837a58 EFLAGS: 00010282 [ 23.637778][ T338] RAX: 0000000000000055 RBX: ffffffff85fc4f20 RCX: 0990ef07c8a2ee00 [ 23.645724][ T338] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 23.653664][ T338] RBP: ffff8881f52af420 R08: ffffffff814e6147 R09: ffffed103edc5e08 [ 23.661602][ T338] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.669544][ T338] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efa0bcc0 [ 23.677530][ T338] ? vprintk_emit+0x457/0x4c0 [ 23.682177][ T338] d_walk+0x2d9/0x540 [ 23.686179][ T338] ? __d_free+0x20/0x20 [ 23.690340][ T338] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.695779][ T338] generic_shutdown_super+0x63/0x2a0 [ 23.701029][ T338] kill_block_super+0x79/0xd0 [ 23.705673][ T338] deactivate_locked_super+0xaf/0x100 [ 23.711010][ T338] deactivate_super+0x1b3/0x270 [ 23.715827][ T338] ? deactivate_locked_super+0x100/0x100 [ 23.721424][ T338] ? dput+0x4de/0x5d0 [ 23.725372][ T338] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.730446][ T338] ? find_next_bit+0xc6/0x110 [ 23.735088][ T338] cleanup_mnt+0x432/0x4e0 [ 23.739469][ T338] task_work_run+0x186/0x1b0 [ 23.744023][ T338] do_exit+0xcb9/0x2bf0 [ 23.748148][ T338] ? mm_update_next_owner+0x5c0/0x5c0 [ 23.753487][ T338] ? __up_read+0x6f/0x1b0 [ 23.757781][ T338] ? __down_read+0x210/0x210 [ 23.762342][ T338] ? check_preemption_disabled+0x154/0x330 [ 23.768117][ T338] ? debug_smp_processor_id+0x20/0x20 [ 23.773455][ T338] do_group_exit+0x15c/0x2c0 [ 23.778013][ T338] ? do_user_addr_fault+0x6b0/0xb40 [ 23.783177][ T338] __do_sys_exit_group+0x13/0x20 [ 23.788080][ T338] __se_sys_exit_group+0x10/0x10 [ 23.792980][ T338] __x64_sys_exit_group+0x37/0x40 [ 23.797969][ T338] do_syscall_64+0xcb/0x150 [ 23.802439][ T338] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.808298][ T338] RIP: 0033:0x442de9 [ 23.812164][ T338] Code: Bad RIP value. [ 23.816196][ T338] RSP: 002b:00007ffe0e356408 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.824573][ T338] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442de9 [ 23.832508][ T338] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.840492][ T338] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 23.848428][ T338] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 23.856365][ T338] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 23.865001][ T338] Kernel Offset: disabled [ 23.869307][ T338] Rebooting in 86400 seconds..