Warning: Permanently added '10.128.1.24' (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)[ ***] 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)[ 20.214394][ T22] audit: type=1400 audit(1616827816.605:8): avc: denied { execmem } for pid=336 comm="syz-executor134" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 20.244869][ T337] incfs: Can't find or create .index dir in ./file0 [ 20.252577][ T337] BUG: Dentry ffff8881efa80880{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 20.262261][ T337] ------------[ cut here ]------------ [ 20.267706][ T337] WARNING: CPU: 0 PID: 337 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 20.275992][ T337] Modules linked in: [ 20.279883][ T337] CPU: 0 PID: 337 Comm: syz-executor134 Not tainted 5.4.108-syzkaller-00846-g7af03784d889 #0 [ 20.289994][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.300021][ T337] RIP: 0010:umount_check+0x179/0x1c0 [ 20.305272][ T337] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 f1 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 dc 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 [ 20.324960][ T337] RSP: 0018:ffff8881e931fa58 EFLAGS: 00010282 [ 20.330994][ T337] RAX: 0000000000000054 RBX: ffffffff85fc4de0 RCX: fec28f80b5cbc300 [ 20.338932][ T337] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000 [ 20.346871][ T337] RBP: ffff8881e90e1420 R08: ffffffff814e8847 R09: ffffed103edc5e08 [ 20.354826][ T337] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 20.362781][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efa80880 [ 20.370722][ T337] FS: 0000000000867300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 20.379613][ T337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.386161][ T337] CR2: 00007fea05a61000 CR3: 00000001e1795000 CR4: 00000000001406f0 [ 20.394102][ T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.402041][ T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.409982][ T337] Call Trace: [ 20.413262][ T337] d_walk+0x2d9/0x540 [ 20.417209][ T337] ? __d_free+0x20/0x20 [ 20.421331][ T337] shrink_dcache_for_umount+0x8a/0x1a0 [ 20.426772][ T337] generic_shutdown_super+0x63/0x2a0 [ 20.426780][ T337] kill_block_super+0x79/0xd0 [ 20.426787][ T337] deactivate_locked_super+0xaf/0x100 [ 20.426798][ T337] deactivate_super+0x1b3/0x270 [ 20.446884][ T337] ? deactivate_locked_super+0x100/0x100 [ 20.452533][ T337] ? dput+0x4de/0x5d0 [ 20.456499][ T337] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.461589][ T337] ? find_next_bit+0xc6/0x110 [ 20.466582][ T337] cleanup_mnt+0x432/0x4e0 [ 20.470993][ T337] task_work_run+0x186/0x1b0 [ 20.475569][ T337] do_exit+0xcb9/0x2bf0 [[ 20.479710][ T337] ? mm_update_next_owner+0x5c0/0x5c0 [ 20.485136][ T337] ? __up_read+0x6f/0x1b0 [ 20.489475][ T337] ? __down_read+0x210/0x210 [ 20.494057][ T337] ? check_preemption_disabled+0x154/0x330 *[0;1[ 20.499867][ T337] ? debug_smp_processor_id+0x20/0x20 [ 20.506593][ T337] do_group_exit+0x15c/0x2c0 ;31m*[ 20.511176][ T337] ? do_user_addr_fault+0x6b0/0xb40 [ 20.517733][ T337] __do_sys_exit_group+0x13/0x20 *] [ 20.522651][ T337] __se_sys_exit_group+0x10/0x10 [ 20.528164][ T337] __x64_sys_exit_group+0x37/0x40 [ 20.533161][ T337] do_syscall_64+0xcb/0x1e0 [ 20.537659][ T337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 A start job is r[ 20.543528][ T337] RIP: 0033:0x442de9 [ 20.548793][ T337] Code: Bad RIP value. unning for dev-t[ 20.552854][ T337] RSP: 002b:00007ffc2b625c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 20.562629][ T337] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442de9 [ 20.570757][ T337] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 tyS0.device (13s[ 20.578713][ T337] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 20.588052][ T337] R10: 0000000002000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 20.596003][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 20.603956][ T337] ---[ end trace 6065591ae8671996 ]--- / 1min 30s)[ 20.609463][ T337] BUG: Dentry ffff8881efa80880{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 20.620115][ T337] ------------[ cut here ]------------ [ 20.625559][ T337] WARNING: CPU: 0 PID: 337 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 20.633843][ T337] Modules linked in: [ 20.637710][ T337] CPU: 0 PID: 337 Comm: syz-executor134 Tainted: G W 5.4.108-syzkaller-00846-g7af03784d889 #0 [ 20.649225][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.659254][ T337] RIP: 0010:umount_check+0x179/0x1c0 [ 20.664505][ T337] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 f1 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 dc 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 [ 20.684078][ T337] RSP: 0018:ffff8881e931fa58 EFLAGS: 00010282 [ 20.690110][ T337] RAX: 0000000000000054 RBX: ffffffff85fc4de0 RCX: fec28f80b5cbc300 [ 20.698089][ T337] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 20.706029][ T337] RBP: ffff8881e90e1420 R08: ffffffff814e8847 R09: ffffed103edc5e08 [ 20.713976][ T337] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 20.721957][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efa80880 [ 20.729899][ T337] FS: 0000000000867300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 20.738796][ T337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.745347][ T337] CR2: 0000000000442dbf CR3: 00000001e1795000 CR4: 00000000001406f0 [ 20.753289][ T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.761230][ T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.769167][ T337] Call Trace: [ 20.772429][ T337] d_walk+0x2d9/0x540 [ 20.776379][ T337] ? __d_free+0x20/0x20 [ 20.780503][ T337] shrink_dcache_for_umount+0x8a/0x1a0 [ 20.785937][ T337] generic_shutdown_super+0x63/0x2a0 [ 20.791200][ T337] kill_block_super+0x79/0xd0 [ 20.795848][ T337] deactivate_locked_super+0xaf/0x100 [ 20.801192][ T337] deactivate_super+0x1b3/0x270 [ 20.806008][ T337] ? deactivate_locked_super+0x100/0x100 [ 20.811626][ T337] ? dput+0x4de/0x5d0 [ 20.815620][ T337] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.820703][ T337] ? find_next_bit+0xc6/0x110 [ 20.825354][ T337] cleanup_mnt+0x432/0x4e0 [ 20.829742][ T337] task_work_run+0x186/0x1b0 [ 20.834303][ T337] do_exit+0xcb9/0x2bf0 [ 20.838432][ T337] ? mm_update_next_owner+0x5c0/0x5c0 [ 20.843781][ T337] ? __up_read+0x6f/0x1b0 [ 20.848129][ T337] ? __down_read+0x210/0x210 [ 20.852687][ T337] ? check_preemption_disabled+0x154/0x330 [ 20.858467][ T337] ? debug_smp_processor_id+0x20/0x20 [ 20.863809][ T337] do_group_exit+0x15c/0x2c0 [ 20.868406][ T337] ? do_user_addr_fault+0x6b0/0xb40 [ 20.873581][ T337] __do_sys_exit_group+0x13/0x20 [ 20.878489][ T337] __se_sys_exit_group+0x10/0x10 [ 20.883407][ T337] __x64_sys_exit_group+0x37/0x40 [ 20.888414][ T337] do_syscall_64+0xcb/0x1e0 [ 20.892882][ T337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.898741][ T337] RIP: 0033:0x442de9 [ 20.902610][ T337] Code: Bad RIP value. [ 20.906659][ T337] RSP: 002b:00007ffc2b625c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 20.915041][ T337] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442de9 [ 20.922998][ T337] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 20.930946][ T337] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 20.938884][ T337] R10: 0000000002000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 20.946825][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 20.954769][ T337] ---[ end trace 6065591ae8671997 ]--- [ 20.961913][ T337] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day...