Warning: Permanently added '10.128.0.75' (ECDSA) to the list of known hosts. executing program [ ***] 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 (13s / 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 (16s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (18s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (18s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (19s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (20s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (20s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (21s / 1min 30s)[ *] A start job is running for dev-ttyS0.device (21s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (22s / 1min 30s)[ 30.082224][ T22] audit: type=1400 audit(1614729762.121:8): avc: denied { execmem } for pid=332 comm="syz-executor137" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 30.112767][ T334] FAT-fs (loop0): Directory bread(block 6) failed [ 30.120971][ T334] FAT-fs (loop0): Directory bread(block 6) failed [ 30.128075][ T334] incfs: Can't find or create .index dir in ./file0 [ 30.135666][ T334] BUG: Dentry 0000000068fae24b{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 30.145502][ T334] ------------[ cut here ]------------ [ 30.150954][ T334] WARNING: CPU: 0 PID: 334 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 30.159254][ T334] Kernel panic - not syncing: panic_on_warn set ... [ 30.165838][ T334] CPU: 0 PID: 334 Comm: syz-executor137 Not tainted 5.4.101-syzkaller-00001-g5aa479507289 #0 [ 30.175958][ T334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.186009][ T334] Call Trace: [ 30.189296][ T334] dump_stack+0x1d8/0x24e [ 30.193613][ T334] ? devkmsg_release+0x11c/0x11c [ 30.198550][ T334] ? show_regs_print_info+0x12/0x12 [ 30.203740][ T334] ? vprintk_store+0x680/0x680 [ 30.208491][ T334] ? console_trylock+0x166/0x1c0 [ 30.213423][ T334] ? umount_check+0x170/0x1c0 [ 30.218082][ T334] ? umount_check+0x170/0x1c0 [ 30.223774][ T334] panic+0x285/0x740 [ 30.227667][ T334] ? __warn+0xfa/0x200 [ 30.231713][ T334] ? nmi_panic+0x90/0x90 [ 30.235938][ T334] ? devkmsg_release+0x11c/0x11c [ 30.241043][ T334] ? is_valid_bugaddr+0xa0/0x150 [ 30.245958][ T334] ? umount_check+0x179/0x1c0 [ 30.250608][ T334] __warn+0x1f1/0x200 [ 30.254566][ T334] ? umount_check+0x179/0x1c0 [ 30.259220][ T334] report_bug+0x380/0x4d0 [ 30.263525][ T334] ? umount_check+0x179/0x1c0 [ 30.268174][ T334] do_invalid_op+0x6e/0x110 [ 30.272658][ T334] invalid_op+0x1e/0x30 [ 30.276890][ T334] RIP: 0010:umount_check+0x179/0x1c0 [ 30.282148][ T334] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 80 d1 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 d7 3a 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 [ 30.301936][ T334] RSP: 0018:ffff8881e8d87a58 EFLAGS: 00010282 [ 30.307987][ T334] RAX: 0000000000000054 RBX: ffffffff85fc4cc0 RCX: d80c80325061e000 [ 30.315943][ T334] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 30.323895][ T334] RBP: ffff8881f15ed420 R08: ffffffff814e6247 R09: ffffed103edc5e08 [ 30.331848][ T334] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 30.339812][ T334] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efef3330 [ 30.347788][ T334] ? vprintk_emit+0x457/0x4c0 [ 30.352449][ T334] d_walk+0x2d9/0x540 [ 30.356418][ T334] ? __d_free+0x20/0x20 [ 30.360545][ T334] shrink_dcache_for_umount+0x8a/0x1a0 [ 30.365978][ T334] generic_shutdown_super+0x63/0x2a0 [ 30.371257][ T334] kill_block_super+0x79/0xd0 [ 30.375909][ T334] deactivate_locked_super+0xaf/0x100 [ 30.381260][ T334] deactivate_super+0x1b3/0x270 [ 30.386701][ T334] ? deactivate_locked_super+0x100/0x100 [ 30.392318][ T334] ? dput+0x4de/0x5d0 [ 30.396281][ T334] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 30.401374][ T334] ? find_next_bit+0xc6/0x110 [ 30.406054][ T334] cleanup_mnt+0x432/0x4e0 [ 30.410453][ T334] task_work_run+0x186/0x1b0 [ 30.415049][ T334] do_exit+0xcb9/0x2bf0 [ 30.419192][ T334] ? mm_update_next_owner+0x5c0/0x5c0 [ 30.424632][ T334] ? __up_read+0x6f/0x1b0 [ 30.428939][ T334] ? __down_read+0x210/0x210 [ 30.433504][ T334] ? check_preemption_disabled+0x154/0x330 [ 30.439295][ T334] ? debug_smp_processor_id+0x20/0x20 [ 30.444684][ T334] do_group_exit+0x15c/0x2c0 [ 30.444702][ T334] ? do_user_addr_fault+0x6b0/0xb40 [ 30.454468][ T334] __do_sys_exit_group+0x13/0x20 [ 30.459416][ T334] __se_sys_exit_group+0x10/0x10 [ 30.464381][ T334] __x64_sys_exit_group+0x37/0x40 [ 30.469430][ T334] do_syscall_64+0xcb/0x150 [ 30.473954][ T334] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 30.479836][ T334] RIP: 0033:0x442e09 [ 30.483985][ T334] Code: Bad RIP value. [ 30.488048][ T334] RSP: 002b:00007ffc69d66288 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 30.496441][ T334] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e09 [ 30.504411][ T334] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 30.512379][ T334] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 30.520342][ T334] R10: 000000000020000c R11: 0000000000000246 R12: 00000000004b42f0 [ 30.528314][ T334] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 30.536866][ T334] Kernel Offset: disabled [ 30.541190][ T334] Rebooting in 86400 seconds..