Warning: Permanently added '10.128.0.38' (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 (8s / 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 (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)[ 23.902215][ T22] audit: type=1400 audit(1619282008.311:8): avc: denied { execmem } for pid=336 comm="syz-executor491" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 23.944013][ T337] incfs: Can't find or create .index dir in ./file0 [ 23.951395][ T337] BUG: Dentry ffff8881efbbdcc0{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 23.961251][ T337] ------------[ cut here ]------------ [ 23.966709][ T337] WARNING: CPU: 0 PID: 337 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.975006][ T337] Modules linked in: [ 23.978873][ T337] CPU: 0 PID: 337 Comm: syz-executor491 Not tainted 5.4.114-syzkaller-00371-gaa0556d71ff1 #0 [ 23.989070][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.999211][ T337] RIP: 0010:umount_check+0x179/0x1c0 [ 24.004475][ T337] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 f4 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 67 e3 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 [ 24.024053][ T337] RSP: 0018:ffff8881e96cfa58 EFLAGS: 00010282 [ 24.030101][ T337] RAX: 0000000000000055 RBX: ffffffff85fc5400 RCX: 6faa5c93a505ee00 [ 24.038063][ T337] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 24.046010][ T337] RBP: ffff8881e135d420 R08: ffffffff814e8767 R09: ffffed103edc5e08 [ 24.053948][ T337] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 24.061898][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efbbdcc0 [ 24.069848][ T337] FS: 0000000000b18300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 24.078752][ T337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.085317][ T337] CR2: 00000000004b51d0 CR3: 0000000005e0e000 CR4: 00000000001406f0 [ 24.093258][ T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.101197][ T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.109145][ T337] Call Trace: [ 24.112405][ T337] d_walk+0x2d9/0x540 [ 24.116365][ T337] ? __d_free+0x20/0x20 [ 24.120486][ T337] shrink_dcache_for_umount+0x8a/0x1a0 [ 24.125910][ T337] generic_shutdown_super+0x63/0x2a0 [ 24.131159][ T337] kill_block_super+0x79/0xd0 [ 24.135802][ T337] deactivate_locked_super+0xaf/0x100 [ 24.141137][ T337] deactivate_super+0x1b3/0x270 [ 24.145951][ T337] ? deactivate_locked_super+0x100/0x100 [ 24.151546][ T337] ? dput+0x4de/0x5d0 [ 24.155495][ T337] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 24.160572][ T337] ? find_next_bit+0xc6/0x110 [ 24.165223][ T337] cleanup_mnt+0x432/0x4e0 [ 24.169607][ T337] task_work_run+0x186/0x1b0 [ 24.174162][ T337] do_exit+0xcb9/0x2bf0 [ 24.178283][ T337] ? mm_update_next_owner+0x5c0/0x5c0 [ 24.183621][ T337] ? __up_read+0x6f/0x1b0 [ 24.187926][ T337] ? __down_read+0x210/0x210 [ 24.192482][ T337] ? check_preemption_disabled+0x154/0x330 [ 24.198254][ T337] ? debug_smp_processor_id+0x20/0x20 [ 24.203592][ T337] do_group_exit+0x15c/0x2c0 [ 24.208147][ T337] ? do_user_addr_fault+0x6b0/0xb40 [ 24.213322][ T337] __do_sys_exit_group+0x13/0x20 [ 24.218225][ T337] __se_sys_exit_group+0x10/0x10 [ 24.223129][ T337] __x64_sys_exit_group+0x37/0x40 [ 24.228116][ T337] do_syscall_64+0xcb/0x1e0 [ 24.232587][ T337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.238444][ T337] RIP: 0033:0x442e29 [ 24.242312][ T337] Code: Bad RIP value. [ 24.246342][ T337] RSP: 002b:00007ffc8334e948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.254741][ T337] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e29 [ 24.262684][ T337] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.270623][ T337] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 24.278563][ T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 24.286502][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 24.294443][ T337] ---[ end trace 039e3828f7cac678 ]--- [*[ 24.300406][ T337] BUG: Dentry ffff8881efbbdcc0{i=0,n=.index} still in use (1) [unmount of msdos loop0] [0m* [ 24.311468][ T337] ------------[ cut here ]------------ [ 24.318246][ T337] WARNING: CPU: 0 PID: 337 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 24.326545][ T337] Modules linked in: [ 24.330436][ T337] CPU: 0 PID: 337 Comm: syz-executor491 Tainted: G W 5.4.114-syzkaller-00371-gaa0556d71ff1 #0 [0m] A start job[ 24.341957][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.353383][ T337] RIP: 0010:umount_check+0x179/0x1c0 [ 24.358646][ T337] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 f4 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 67 e3 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 [ 24.378239][ T337] RSP: 0018:ffff8881e96cfa58 EFLAGS: 00010282 is running for [ 24.384281][ T337] RAX: 0000000000000055 RBX: ffffffff85fc5400 RCX: 6faa5c93a505ee00 [ 24.393611][ T337] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 24.401566][ T337] RBP: ffff8881e135d420 R08: ffffffff814e8767 R09: ffffed103edc5e08 [ 24.409519][ T337] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 24.417474][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efbbdcc0 [ 24.425426][ T337] FS: 0000000000b18300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 24.434335][ T337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.440909][ T337] CR2: 0000000000442dff CR3: 00000001f17b7000 CR4: 00000000001406f0 [ 24.448862][ T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.456812][ T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.464760][ T337] Call Trace: [ 24.468034][ T337] d_walk+0x2d9/0x540 dev-ttyS0.device[ 24.471993][ T337] ? __d_free+0x20/0x20 [ 24.477522][ T337] shrink_dcache_for_umount+0x8a/0x1a0 [ 24.482962][ T337] generic_shutdown_super+0x63/0x2a0 [ 24.488227][ T337] kill_block_super+0x79/0xd0 [ 24.492900][ T337] deactivate_locked_super+0xaf/0x100 [ 24.498251][ T337] deactivate_super+0x1b3/0x270 [ 24.503080][ T337] ? deactivate_locked_super+0x100/0x100 (17s / 1min 30s[ 24.508690][ T337] ? dput+0x4de/0x5d0 [ 24.514037][ T337] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 24.519128][ T337] ? find_next_bit+0xc6/0x110 [ 24.523795][ T337] cleanup_mnt+0x432/0x4e0 )[ 24.528194][ T337] task_work_run+0x186/0x1b0 [ 24.532836][ T337] do_exit+0xcb9/0x2bf0 [ 24.536973][ T337] ? mm_update_next_owner+0x5c0/0x5c0 [ 24.542322][ T337] ? __up_read+0x6f/0x1b0 [ 24.546628][ T337] ? __down_read+0x210/0x210 [ 24.551187][ T337] ? check_preemption_disabled+0x154/0x330 [ 24.556961][ T337] ? debug_smp_processor_id+0x20/0x20 [ 24.562298][ T337] do_group_exit+0x15c/0x2c0 [ 24.566865][ T337] ? do_user_addr_fault+0x6b0/0xb40 [ 24.572029][ T337] __do_sys_exit_group+0x13/0x20 [ 24.576933][ T337] __se_sys_exit_group+0x10/0x10 [ 24.581835][ T337] __x64_sys_exit_group+0x37/0x40 [ 24.586825][ T337] do_syscall_64+0xcb/0x1e0 [ 24.591295][ T337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.597163][ T337] RIP: 0033:0x442e29 [ 24.601043][ T337] Code: Bad RIP value. [ 24.605078][ T337] RSP: 002b:00007ffc8334e948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.613452][ T337] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e29 [ 24.621391][ T337] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.629332][ T337] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 24.637268][ T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 24.645207][ T337]