Warning: Permanently added '10.128.1.67' (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)[ 17.063000][ T22] audit: type=1400 audit(1619306441.754:8): avc: denied { execmem } for pid=335 comm="syz-executor649" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 17.093303][ T336] incfs: Can't find or create .index dir in ./file0 [ 17.100936][ T336] BUG: Dentry ffff8881eff9b770{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 17.110725][ T336] ------------[ cut here ]------------ [ 17.116191][ T336] WARNING: CPU: 1 PID: 336 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 17.124487][ T336] Modules linked in: [ 17.128354][ T336] CPU: 1 PID: 336 Comm: syz-executor649 Not tainted 5.4.114-syzkaller-00371-gaa0556d71ff1 #0 [ 17.138464][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.148494][ T336] RIP: 0010:umount_check+0x179/0x1c0 [ 17.153744][ T336] 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 [ 17.173315][ T336] RSP: 0018:ffff8881e8d87a58 EFLAGS: 00010282 [ 17.179345][ T336] RAX: 0000000000000055 RBX: ffffffff85fc5400 RCX: 6814e1b5fb0d2900 [ 17.187330][ T336] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 17.195308][ T336] RBP: ffff8881f15ae420 R08: ffffffff814e8767 R09: ffffed103ede5e08 [ 17.203245][ T336] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 17.211184][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eff9b770 [ 17.219123][ T336] FS: 0000000000e4c300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 17.228015][ T336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.234565][ T336] CR2: 00000000004b51d0 CR3: 00000001ee4de000 CR4: 00000000001406e0 [ 17.242505][ T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.250456][ T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.258424][ T336] Call Trace: [ 17.261683][ T336] d_walk+0x2d9/0x540 [ 17.265633][ T336] ? __d_free+0x20/0x20 [ 17.269754][ T336] shrink_dcache_for_umount+0x8a/0x1a0 [ 17.275178][ T336] generic_shutdown_super+0x63/0x2a0 [ 17.280427][ T336] kill_block_super+0x79/0xd0 [ 17.285069][ T336] deactivate_locked_super+0xaf/0x100 [ 17.290419][ T336] deactivate_super+0x1b3/0x270 [ 17.295235][ T336] ? deactivate_locked_super+0x100/0x100 [ 17.300833][ T336] ? dput+0x4de/0x5d0 [ 17.304781][ T336] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 17.309859][ T336] ? find_next_bit+0xc6/0x110 [ 17.314520][ T336] cleanup_mnt+0x432/0x4e0 [ 17.318940][ T336] task_work_run+0x186/0x1b0 [ 17.323510][ T336] do_exit+0xcb9/0x2bf0 [ 17.327633][ T336] ? mm_update_next_owner+0x5c0/0x5c0 [ 17.332971][ T336] ? __up_read+0x6f/0x1b0 [ 17.337265][ T336] ? __down_read+0x210/0x210 [ 17.341831][ T336] ? check_preemption_disabled+0x154/0x330 [ 17.347604][ T336] ? debug_smp_processor_id+0x20/0x20 [ 17.352943][ T336] do_group_exit+0x15c/0x2c0 [ 17.357498][ T336] ? do_user_addr_fault+0x6b0/0xb40 [ 17.362664][ T336] __do_sys_exit_group+0x13/0x20 [ 17.367568][ T336] __se_sys_exit_group+0x10/0x10 [ 17.372472][ T336] __x64_sys_exit_group+0x37/0x40 [ 17.377547][ T336] do_syscall_64+0xcb/0x1e0 [ 17.382030][ T336] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 17.387908][ T336] RIP: 0033:0x442e29 [ 17.391779][ T336] Code: Bad RIP value. [ 17.395824][ T336] RSP: 002b:00007ffdee1ca688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.404199][ T336] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e29 [ 17.412137][ T336] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 17.420075][ T336] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 17.428016][ T336] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 17.435966][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 17.443914][ T336] ---[ end trace ed197d3f2c0d953e ]--- [ 17.449445][ T336] BUG: Dentry ffff8881eff9b770{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 17.459223][ T336] ------------[ cut here ]------------ [ 17.464674][ T336] WARNING: CPU: 1 PID: 336 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 17.472960][ T336] Modules linked in: [ 17.476838][ T336] CPU: 1 PID: 336 Comm: syz-executor649 Tainted: G W 5.4.114-syzkaller-00371-gaa0556d71ff1 #0 [ 17.488340][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.498383][ T336] RIP: 0010:umount_check+0x179/0x1c0 [ 17.503641][ T336] 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 [ 17.523215][ T336] RSP: 0018:ffff8881e8d87a58 EFLAGS: 00010282 [ 17.529250][ T336] RAX: 0000000000000055 RBX: ffffffff85fc5400 RCX: 6814e1b5fb0d2900 [ 17.537186][ T336] RDX: 0000000000000000 RSI: 0000000080000003 RDI: 0000000000000000 [ 17.545137][ T336] RBP: ffff8881f15ae420 R08: ffffffff814e8767 R09: ffffed103ede5e08 [ 17.553076][ T336] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 17.561466][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eff9b770 [ 17.569405][ T336] FS: 0000000000e4c300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 17.578300][ T336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.584851][ T336] CR2: 0000000000442dff CR3: 00000001ee4de000 CR4: 00000000001406e0 [ 17.592791][ T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.600731][ T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.609191][ T336] Call Trace: [ 17.612452][ T336] d_walk+0x2d9/0x540 [ 17.616401][ T336] ? __d_free+0x20/0x20 [ 17.620527][ T336] shrink_dcache_for_umount+0x8a/0x1a0 [ 17.625962][ T336] generic_shutdown_super+0x63/0x2a0 [ 17.631252][ T336] kill_block_super+0x79/0xd0 [ 17.631266][ T336] deactivate_locked_super+0xaf/0x100 [ 17.641259][ T336] deactivate_super+0x1b3/0x270 [ 17.646115][ T336] ? deactivate_locked_super+0x100/0x100 [ 17.651766][ T336] ? dput+0x4de/0x5d0 [ 17.655735][ T336] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 17.660843][ T336] ? find_next_bit+0xc6/0x110 [ 17.665509][ T336] cleanup_mnt+0x432/0x4e0 [ 17.669976][ T336] task_work_run+0x186/0x1b0 [ 17.674565][ T336] do_exit+0xcb9/0x2bf0 [ 17.678707][ T336] ? mm_update_next_owner+0x5c0/0x5c0 [ 17.684060][ T336] ? __up_read+0x6f/0x1b0 [ 17.688369][ T336] ? __down_read+0x210/0x210 [ 17.692942][ T336] ? check_preemption_disabled+0x154/0x330 [ 17.698725][ T336] ? debug_smp_processor_id+0x20/0x20 [ 17.704113][ T336] do_group_exit+0x15c/0x2c0 [ 17.708675][ T336] ? do_user_addr_fault+0x6b0/0xb40 [ 17.713841][ T336] __do_sys_exit_group+0x13/0x20 [ 17.718746][ T336] __se_sys_exit_group+0x10/0x10 [ 17.724019][ T336] __x64_sys_exit_group+0x37/0x40 [ 17.729014][ T336] do_syscall_64+0xcb/0x1e0 [ 17.733488][ T336] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 17.739364][ T336] RIP: 0033:0x442e29 [ 17.743233][ T336] Code: Bad RIP value. [ 17.747278][ T336] RSP: 002b:00007ffdee1ca688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.755657][ T336] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e29 [ 17.763600][ T336] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 17.771545][ T336] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 17.779491][ T336] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 17.787444][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 17.795456][ T336] ---[ end trace ed197d3f2c0d953f ]--- [ *[ 17.802252][ T336] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... **] A start job is run