Warning: Permanently added '10.128.0.144' (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 (11s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ 19.147270][ T22] audit: type=1400 audit(1629173545.239:8): avc: denied { execmem } for pid=339 comm="syz-executor168" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 19.187705][ T341] erofs: (device loop0): mounted with opts: , root inode @ nid 36. [ 19.196071][ T341] incfs: Can't find or create .index dir in ./file0 [ 19.204801][ T341] BUG: Dentry ffff8881ecadf770{i=0,n=.index} still in use (1) [unmount of erofs loop0] [ 19.214608][ T341] ------------[ cut here ]------------ [ 19.220083][ T341] WARNING: CPU: 0 PID: 341 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.228389][ T341] Modules linked in: [ 19.232266][ T341] CPU: 0 PID: 341 Comm: syz-executor168 Not tainted 5.4.125-syzkaller-00008-ga8f2bcabf9c5 #0 [ 19.242385][ T341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.252432][ T341] RIP: 0010:umount_check+0x179/0x1c0 [ 19.257688][ T341] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 0b e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 a2 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 [ 19.277528][ T341] RSP: 0018:ffff8881e5917a30 EFLAGS: 00010296 [ 19.283679][ T341] RAX: 0000000000000055 RBX: ffffffff86013400 RCX: cbc9690017809f00 [ 19.291633][ T341] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 19.299588][ T341] RBP: ffff8881e5a85420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 19.307541][ T341] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 19.315482][ T341] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecadf770 [ 19.323423][ T341] FS: 0000000001215300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 19.332318][ T341] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.338872][ T341] CR2: 00000000004b51d0 CR3: 0000000005e0e000 CR4: 00000000001406f0 [ 19.346824][ T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.354762][ T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.362698][ T341] Call Trace: [ 19.365960][ T341] d_walk+0x2d9/0x540 [ 19.369937][ T341] ? __d_free+0x20/0x20 [ 19.374061][ T341] shrink_dcache_for_umount+0x8a/0x1a0 [ 19.379488][ T341] generic_shutdown_super+0x63/0x2a0 [ 19.384753][ T341] kill_block_super+0x79/0xd0 [ 19.389398][ T341] erofs_kill_sb+0x5b/0xc0 [ 19.393782][ T341] deactivate_locked_super+0xaf/0x100 [ 19.399119][ T341] deactivate_super+0x1b3/0x270 [ 19.403939][ T341] ? deactivate_locked_super+0x100/0x100 [ 19.409551][ T341] ? dput+0x4de/0x5d0 [ 19.413501][ T341] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.418578][ T341] ? find_next_bit+0xc6/0x110 [ 19.423241][ T341] cleanup_mnt+0x432/0x4e0 [ 19.427711][ T341] task_work_run+0x186/0x1b0 [ 19.432269][ T341] do_exit+0xcb9/0x2bf0 [ 19.436405][ T341] ? mm_update_next_owner+0x5c0/0x5c0 [ 19.441844][ T341] ? __up_read+0x6f/0x1b0 [ 19.446140][ T341] ? __down_read+0x210/0x210 [ 19.450700][ T341] ? check_preemption_disabled+0x154/0x330 [ 19.456481][ T341] ? debug_smp_processor_id+0x20/0x20 [ 19.461829][ T341] do_group_exit+0x15c/0x2c0 [ 19.466404][ T341] ? do_user_addr_fault+0x6b0/0xb40 [ 19.471568][ T341] __do_sys_exit_group+0x13/0x20 [ 19.476488][ T341] __se_sys_exit_group+0x10/0x10 [ 19.481410][ T341] __x64_sys_exit_group+0x37/0x40 [ 19.486403][ T341] do_syscall_64+0xcb/0x1e0 [ 19.490976][ T341] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.496847][ T341] RIP: 0033:0x442e29 [ 19.500715][ T341] Code: Bad RIP value. [ 19.504748][ T341] RSP: 002b:00007fff366f8ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.513135][ T341] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e29 [ 19.521075][ T341] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 19.529027][ T341] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 19.537038][ T341] R10: 0000000000000010 R11: 0000000000000246 R12: 00000000004b42f0 [ 19.544990][ T341] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 19.552944][ T341] ---[ end trace a9d1c9183858cb4f ]--- [ 19.558478][ T341] BUG: Dentry ffff8881ecadf770{i=0,n=.index} still in use (1) [unmount of erofs loop0] [ 19.568271][ T341] ------------[ cut here ]------------ [ 19.573725][ T341] WARNING: CPU: 0 PID: 341 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.582013][ T341] Modules linked in: [ 19.585896][ T341] CPU: 0 PID: 341 Comm: syz-executor168 Tainted: G W 5.4.125-syzkaller-00008-ga8f2bcabf9c5 #0 [ 19.597414][ T341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.607446][ T341] RIP: 0010:umount_check+0x179/0x1c0 [ 19.612698][ T341] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 0b e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 a2 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 [ 19.632289][ T341] RSP: 0018:ffff8881e5917a30 EFLAGS: 00010296 [ 19.638329][ T341] RAX: 0000000000000055 RBX: ffffffff86013400 RCX: cbc9690017809f00 [ 19.646461][ T341] RDX: 0000000000000000 RSI: 0000000080000003 RDI: 0000000000000000 [ 19.654421][ T341] RBP: ffff8881e5a85420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 19.662360][ T341] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 19.670312][ T341] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecadf770 [ 19.678256][ T341] FS: 0000000001215300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 19.687164][ T341] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.693733][ T341] CR2: 0000000000442dff CR3: 0000000005e0e000 CR4: 00000000001406f0 [ 19.701684][ T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.709627][ T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.717567][ T341] Call Trace: [ 19.720893][ T341] d_walk+0x2d9/0x540 [ 19.724904][ T341] ? __d_free+0x20/0x20 [ 19.729037][ T341] shrink_dcache_for_umount+0x8a/0x1a0 [ 19.734469][ T341] generic_shutdown_super+0x63/0x2a0 [ 19.739723][ T341] kill_block_super+0x79/0xd0 [ 19.744371][ T341] erofs_kill_sb+0x5b/0xc0 [ 19.748764][ T341] deactivate_locked_super+0xaf/0x100 [ 19.754131][ T341] deactivate_super+0x1b3/0x270 [ 19.754139][ T341] ? deactivate_locked_super+0x100/0x100 [ 19.754152][ T341] ? dput+0x4de/0x5d0 [ 19.768587][ T341] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.773706][ T341] ? find_next_bit+0xc6/0x110 [ 19.778380][ T341] cleanup_mnt+0x432/0x4e0 [ 19.783236][ T341] task_work_run+0x186/0x1b0 [[ 19.787843][ T341] do_exit+0xcb9/0x2bf0 [ 19.792067][ T341] ? mm_update_next_owner+0x5c0/0x5c0 [ 19.797425][ T341] ? __up_read+0x6f/0x1b0 [ 19.801739][ T341] ? __down_read+0x210/0x210 [ 19.806326][ T341] ? check_preemption_disabled+0x154/0x330 *[0;[ 19.812127][ T341] ? debug_smp_processor_id+0x20/0x20 [ 19.818861][ T341] do_group_exit+0x15c/0x2c0 1;31m*] [ 19.823432][ T341] ? do_user_addr_fault+0x6b0/0xb40 [ 19.829637][ T341] __do_sys_exit_group+0x13/0x20 [ 19.834561][ T341] __se_sys_exit_group+0x10/0x10 [ 19.839494][ T341] __x64_sys_exit_group+0x37/0x40 A start job is r[ 19.844498][ T341] do_syscall_64+0xcb/0x1e0 [ 19.850367][ T341] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.856242][ T341] RIP: 0033:0x442e29 unning for dev-t[ 19.860114][ T341] Code: Bad RIP value. [ 19.865537][ T341] RSP: 002b:00007fff366f8ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 tyS0.device (12s[ 19.873930][ T341] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e29 [ 19.883356][ T341] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 19.891307][ T341] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 19.899277][ T341] R10: 0000000000000010 R11: 0000000000000246 R12: 00000000004b42f0 / 1min 30s)[ 19.907525][ T341] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 19.916530][ T341] ---[ end trace a9d1c9183858cb50 ]--- [ 19.922231][ T341] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day...