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 (10s / 1min 30s)[ 18.604878][ T22] audit: type=1400 audit(1615252535.930:8): avc: denied { execmem } for pid=349 comm="syz-executor116" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 18.630851][ T350] FAT-fs (loop0): Directory bread(block 6) failed [ 18.639853][ T350] FAT-fs (loop0): Directory bread(block 6) failed [ 18.646391][ T350] incfs: Can't find or create .index dir in ./file0 [ 18.653837][ T350] BUG: Dentry 00000000fe142be6{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 18.663561][ T350] ------------[ cut here ]------------ [ 18.669002][ T350] WARNING: CPU: 1 PID: 350 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 18.677291][ T350] Kernel panic - not syncing: panic_on_warn set ... [ 18.683933][ T350] CPU: 1 PID: 350 Comm: syz-executor116 Not tainted 5.4.103-syzkaller-00436-g16e1b2475015 #0 [ 18.695799][ T350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.706342][ T350] Call Trace: [ 18.709618][ T350] dump_stack+0x1d8/0x24e [ 18.713916][ T350] ? devkmsg_release+0x11c/0x11c [ 18.718821][ T350] ? show_regs_print_info+0x12/0x12 [ 18.723986][ T350] ? vprintk_store+0x680/0x680 [ 18.728734][ T350] ? console_trylock+0x166/0x1c0 [ 18.733639][ T350] ? umount_check+0xd0/0x1c0 [ 18.738219][ T350] ? umount_check+0xd0/0x1c0 [ 18.742778][ T350] panic+0x285/0x740 [ 18.746640][ T350] ? __warn+0xfa/0x200 [ 18.750675][ T350] ? nmi_panic+0x90/0x90 [ 18.754888][ T350] ? devkmsg_release+0x11c/0x11c [ 18.759791][ T350] ? is_valid_bugaddr+0xa0/0x150 [ 18.764714][ T350] ? umount_check+0x179/0x1c0 [ 18.769358][ T350] __warn+0x1f1/0x200 [ 18.773324][ T350] ? umount_check+0x179/0x1c0 [ 18.777969][ T350] report_bug+0x380/0x4d0 [ 18.782294][ T350] ? umount_check+0x179/0x1c0 [ 18.786938][ T350] do_invalid_op+0x6e/0x110 [ 18.791413][ T350] invalid_op+0x1e/0x30 [ 18.795540][ T350] RIP: 0010:umount_check+0x179/0x1c0 [ 18.802061][ T350] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 00 d7 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 17 30 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 [ 18.821718][ T350] RSP: 0018:ffff8881e8d47a58 EFLAGS: 00010282 [ 18.827750][ T350] RAX: 0000000000000054 RBX: ffffffff85fc4e00 RCX: 3f663e1c65e6d200 [ 18.835692][ T350] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 18.843741][ T350] RBP: ffff8881ef53b420 R08: ffffffff814e6927 R09: ffffed103ede5e08 [ 18.851702][ T350] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 18.859644][ T350] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efb8eee0 [ 18.867602][ T350] ? vprintk_emit+0x457/0x4c0 [ 18.867613][ T350] d_walk+0x2d9/0x540 [ 18.86762[ *5][ T3*[50] ? __d0;31m*] A st_free+0x20/art job is runni0x20 ng for dev-ttyS0.device (11s / 1min 30s)[ 18.889410][ T350] shrink_dcache_for_umount+0x8a/0x1a0 [ 18.895253][ T350] generic_shutdown_super+0x63/0x2a0 [ 18.900510][ T350] kill_block_super+0x79/0xd0 [ 18.905158][ T350] deactivate_locked_super+0xaf/0x100 [ 18.910501][ T350] deactivate_super+0x1b3/0x270 [ 18.915342][ T350] ? deactivate_locked_super+0x100/0x100 [ 18.920947][ T350] ? dput+0x4de/0x5d0 [ 18.924925][ T350] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.930006][ T350] ? find_next_bit+0xc6/0x110 [ 18.934655][ T350] cleanup_mnt+0x432/0x4e0 [ 18.939303][ T350] task_work_run+0x186/0x1b0 [ 18.943871][ T350] do_exit+0xcb9/0x2bf0 [ 18.947998][ T350] ? mm_update_next_owner+0x5c0/0x5c0 [ 18.953397][ T350] ? __up_read+0x6f/0x1b0 [ 18.957700][ T350] ? __down_read+0x210/0x210 [ 18.962698][ T350] ? check_preemption_disabled+0x154/0x330 [ 18.968524][ T350] ? debug_smp_processor_id+0x20/0x20 [ 18.973872][ T350] do_group_exit+0x15c/0x2c0 [ 18.978438][ T350] ? do_user_addr_fault+0x6b0/0xb40 [ 18.991137][ T350] __do_sys_exit_group+0x13/0x20 [ 18.996098][ T350] __se_sys_exit_group+0x10/0x10 [ 19.001016][ T350] __x64_sys_exit_group+0x37/0x40 [ 19.006013][ T350] do_syscall_64+0xcb/0x150 [ 19.010491][ T350] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.016379][ T350] RIP: 0033:0x442e19 [ 19.020255][ T350] Code: Bad RIP value. [ 19.024309][ T350] RSP: 002b:00007ffd0f52b898 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.032708][ T350] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e19 [ 19.040651][ T350] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 19.048593][ T350] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 19.056537][ T350] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 19.064480][ T350] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 19.073008][ T350] Kernel Offset: disabled [ 19.077313][ T350] Rebooting in 86400 seconds..