Warning: Permanently added '10.128.0.108' (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 (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 (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 (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)[ 22.940829][ T22] audit: type=1400 audit(1625448727.825:8): avc: denied { execmem } for pid=334 comm="syz-executor451" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 22.971474][ T336] FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) [ 22.983170][ T336] incfs: Can't find or create .index dir in ./file0 [ 22.994255][ T336] BUG: Dentry ffff8881ecfcccc0{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 23.004161][ T336] ------------[ cut here ]------------ [ 23.010502][ T336] WARNING: CPU: 0 PID: 336 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.018977][ T336] Modules linked in: [ 23.022856][ T336] CPU: 0 PID: 336 Comm: syz-executor451 Not tainted 5.4.125-syzkaller-00243-geaef435f4357 #0 [ 23.033637][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.044309][ T336] RIP: 0010:umount_check+0x179/0x1c0 [ 23.049954][ T336] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 05 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af 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 [ 23.069667][ T336] RSP: 0018:ffff8881e5a37a58 EFLAGS: 00010282 [ 23.075794][ T336] RAX: 0000000000000055 RBX: ffffffff85fc6020 RCX: 957c1251b019fb00 [ 23.083883][ T336] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 23.092012][ T336] RBP: ffff8881e5461420 R08: ffffffff814e90a7 R09: ffffed103edc5e08 [ 23.100252][ T336] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.108406][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecfcccc0 [ 23.116734][ T336] FS: 00000000013ed300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.125946][ T336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.132625][ T336] CR2: 00007f6d42a3b038 CR3: 00000001eb502000 CR4: 00000000001406f0 [ 23.140600][ T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.148682][ T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.148687][ T336] Call Trace: [ 23.148703][ T336] d_walk+0x2d9/0x540 [ 23.148711][ T336] ? __d_free+0x20/0x20 [ 23.148720][ T336] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.148728][ T336] generic_shutdown_super+0x63/0x2a0 [ 23.148742][ T336] kill_block_super+0x79/0xd0 [ 23.183868][ T336] deactivate_locked_super+0xaf/0x100 [ 23.189259][ T336] deactivate_super+0x1b3/0x270 [ 23.194148][ T336] ? deactivate_locked_super+0x100/0x100 [ 23.200100][ T336] ? dput+0x4de/0x5d0 [ 23.204188][ T336] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.209387][ T336] ? find_next_bit+0xc6/0x110 [[ 23.214053][ T336] cleanup_mnt+0x432/0x4e0 [ 23.218530][ T336] task_work_run+0x186/0x1b0 [ 23.223224][ T336] do_exit+0xcb9/0x2bf0 *[[ 23.227384][ T336] ? mm_update_next_owner+0x5c0/0x5c0 [ 23.234114][ T336] ? __up_read+0x6f/0x1b0 [ 23.238441][ T336] ? __down_read+0x210/0x210 0;31m* ] [ 23.243464][ T336] ? check_preemption_disabled+0x154/0x330 [ 23.250716][ T336] ? debug_smp_processor_id+0x20/0x20 [ 23.256171][ T336] do_group_exit+0x15c/0x2c0 [ 23.260764][ T336] ? do_user_addr_fault+0x6b0/0xb40 A start job is r[ 23.265961][ T336] __do_sys_exit_group+0x13/0x20 [ 23.272350][ T336] __se_sys_exit_group+0x10/0x10 unning for dev-t[ 23.277274][ T336] __x64_sys_exit_group+0x37/0x40 [ 23.283678][ T336] do_syscall_64+0xcb/0x1e0 tyS0.device (15s[ 23.288604][ T336] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.295852][ T336] RIP: 0033:0x442e19 [ 23.299730][ T336] Code: Bad RIP value. / 1min 30s)[ 23.303779][ T336] RSP: 002b:00007ffe8f9bcd88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.313210][ T336] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e19 [ 23.321186][ T336] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.329137][ T336] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 23.337085][ T336] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 23.345041][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 23.352998][ T336] ---[ end trace 780f5ff15329abd0 ]--- [ 23.359753][ T336] BUG: Dentry ffff8881ecfcccc0{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 23.369896][ T336] ------------[ cut here ]------------ [ 23.375353][ T336] WARNING: CPU: 1 PID: 336 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.383736][ T336] Modules linked in: [ 23.387697][ T336] CPU: 1 PID: 336 Comm: syz-executor451 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 [ 23.400846][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.412472][ T336] RIP: 0010:umount_check+0x179/0x1c0 [ 23.418169][ T336] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 05 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af 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 [ 23.438572][ T336] RSP: 0018:ffff8881e5a37a58 EFLAGS: 00010282 [ 23.444734][ T336] RAX: 0000000000000055 RBX: ffffffff85fc6020 RCX: 957c1251b019fb00 [ 23.453041][ T336] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 23.460994][ T336] RBP: ffff8881e5461420 R08: ffffffff814e90a7 R09: ffffed103ede5e08 [ 23.469035][ T336] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.477097][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecfcccc0 [ 23.485131][ T336] FS: 00000000013ed300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 23.494079][ T336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.500830][ T336] CR2: 00007fefcc037108 CR3: 00000001deda5000 CR4: 00000000001406e0 [ 23.508804][ T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.516849][ T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.524794][ T336] Call Trace: [ 23.528194][ T336] d_walk+0x2d9/0x540 [ 23.532164][ T336] ? __d_free+0x20/0x20 [ 23.536296][ T336] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.541728][ T336] generic_shutdown_super+0x63/0x2a0 [ 23.546993][ T336] kill_block_super+0x79/0xd0 [ 23.551736][ T336] deactivate_locked_super+0xaf/0x100 [ 23.557095][ T336] deactivate_super+0x1b3/0x270 [ 23.561920][ T336] ? deactivate_locked_super+0x100/0x100 [ 23.567530][ T336] ? dput+0x4de/0x5d0 [ 23.571508][ T336] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.576603][ T336] ? find_next_bit+0xc6/0x110 [ 23.581278][ T336] cleanup_mnt+0x432/0x4e0 [ 23.585677][ T336] task_work_run+0x186/0x1b0 [ 23.590241][ T336] do_exit+0xcb9/0x2bf0 [ 23.594372][ T336] ? mm_update_next_owner+0x5c0/0x5c0 [ 23.599826][ T336] ? __up_read+0x6f/0x1b0 [ 23.604574][ T336] ? __down_read+0x210/0x210 [ 23.609139][ T336] ? check_preemption_disabled+0x154/0x330 [ 23.614948][ T336] ? debug_smp_processor_id+0x20/0x20 [ 23.620520][ T336] do_group_exit+0x15c/0x2c0 [ 23.625215][ T336] ? do_user_addr_fault+0x6b0/0xb40 [ 23.630411][ T336] __do_sys_exit_group+0x13/0x20 [ 23.635337][ T336] __se_sys_exit_group+0x10/0x10 [ 23.640338][ T336] __x64_sys_exit_group+0x37/0x40 [ 23.645338][ T336] do_syscall_64+0xcb/0x1e0 [ 23.649844][ T336] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.655742][ T336] RIP: 0033:0x442e19 [ 23.659946][ T336] Code: Bad RIP value. [ 23.663984][ T336] RSP: 002b:00007ffe8f9bcd88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.672483][ T336] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e19 [ 23.680491][ T336] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.688819][ T336] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 23.696770][ T336] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 23.704732][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 23.712854][ T336] ---[ end trace 780f5ff15329abd1 ]--- [ 23.720311][ T336] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day...