Warning: Permanently added '10.128.0.198' (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)[ 18.489443][ T22] audit: type=1400 audit(1614211526.625:8): avc: denied { execmem } for pid=337 comm="syz-executor198" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 18.530957][ T338] incfs: Can't find or create .index dir in ./file0 [ 18.538757][ T338] BUG: Dentry 0000000041be5a79{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 18.548566][ T338] ------------[ cut here ]------------ [ 18.554132][ T338] WARNING: CPU: 0 PID: 338 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 18.563282][ T338] Kernel panic - not syncing: panic_on_warn set ... [ 18.570063][ T338] CPU: 0 PID: 338 Comm: syz-executor198 Not tainted 5.4.100-syzkaller-00412-g7ba24942b70e #0 [ 18.580556][ T338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.591382][ T338] Call Trace: [ 18.594911][ T338] dump_stack+0x1d8/0x24e [ 18.599537][ T338] ? devkmsg_release+0x11c/0x11c [ 18.604562][ T338] ? show_regs_print_info+0x12/0x12 [ 18.609752][ T338] ? vprintk_store+0x680/0x680 [ 18.614513][ T338] ? console_trylock+0x166/0x1c0 [ 18.619725][ T338] ? umount_check+0xf0/0x1c0 [ 18.624770][ T338] ? umount_check+0xf0/0x1c0 [ 18.629536][ T338] panic+0x285/0x740 [ 18.633596][ T338] ? __warn+0xfa/0x200 [ 18.637651][ T338] ? nmi_panic+0x90/0x90 [ 18.642061][ T338] ? devkmsg_release+0x11c/0x11c [ 18.647336][ T338] ? is_valid_bugaddr+0xa0/0x150 [ 18.652597][ T338] ? umount_check+0x179/0x1c0 [ 18.657619][ T338] __warn+0x1f1/0x200 [ 18.661843][ T338] ? umount_check+0x179/0x1c0 [ 18.666776][ T338] report_bug+0x380/0x4d0 [ 18.671091][ T338] ? umount_check+0x179/0x1c0 [ 18.675763][ T338] do_invalid_op+0x6e/0x110 [ 18.680246][ T338] invalid_op+0x1e/0x30 [ 18.684383][ T338] RIP: 0010:umount_check+0x179/0x1c0 [ 18.689730][ T338] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 c0 d2 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 77 3d b0 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 [ 18.710542][ T338] RSP: 0018:ffff8881e8fa7a58 EFLAGS: 00010282 [ 18.716786][ T338] RAX: 0000000000000055 RBX: ffffffff85fc4f60 RCX: 86cdd84f091f5000 [ 18.726119][ T338] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 18.734545][ T338] RBP: ffff8881e8eb1420 R08: ffffffff814e6067 R09: ffffed103edc5e08 [ 18.742712][ T338] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 18.750859][ T338] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eff00aa0 [ 18.759011][ T338] ? vprintk_emit+0x457/0x4c0 [ 18.763791][ T338] d_walk+0x2d9/0x540 [ 18.767882][ T338] ? __d_free+0x20/0x20 [ 18.772080][ T338] shrink_dcache_for_umount+0x8a/0x1a0 [ 18.777613][ T338] generic_shutdown_super+0x63/0x2a0 [ 18.783151][ T338] kill_block_super+0x79/0xd0 [ 18.788084][ T338] deactivate_locked_super+0xaf/0x100 [ 18.794355][ T338] deactivate_super+0x1b3/0x270 [ 18.799437][ T338] ? deactivate_locked_super+0x100/0x100 [ 18.805431][ T338] ? dput+0x4de/0x5d0 [ 18.809598][ T338] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.814811][ T338] ? find_next_bit+0xc6/0x110 [ 18.819711][ T338] cleanup_mnt+0x432/0x4e0 [ 18.824431][ T338] task_work_run+0x186/0x1b0 [ 18.829211][ T338] do_exit+0xcb9/0x2bf0 [ 18.833732][ T338] ? mm_update_next_owner+0x5c0/0x5c0 [ 18.839183][ T338] ? __up_read+0x6f/0x1b0 [ 18.844039][ T338] ? __down_read+0x210/0x210 [ 18.849216][ T338] ? check_preemption_disabled+0x154/0x330 [ 18.855447][ T338] ? debug_smp_processor_id+0x20/0x20 [ 18.860803][ T338] do_group_exit+0x15c/0x2c0 [ 18.865375][ T338] ? do_user_addr_fault+0x6b0/0xb40 [ 18.870674][ T338] __do_sys_exit_group+0x13/0x20 [ 18.876013][ T338] __se_sys_exit_group+0x10/0x10 [ 18.881304][ T338] __x64_sys_exit_group+0x37/0x40 [ 18.886608][ T338] do_syscall_64+0xcb/0x150 [ 18.891112][ T338] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.897203][ T338] RIP: 0033:0x4434c9 [ 18.901085][ T338] Code: Bad RIP value. [ 18.905240][ T338] RSP: 002b:00007ffc7cf6f458 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 18.913628][ T338] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 00000000004434c9 [ 18.921694][ T338] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 18.929758][ T338] RBP: 0000000000000001 R08: ffffffffffffffc4 R09: 0000000000000000 [ 18.938213][ T338] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 18.946507][ T338] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 18.955996][ T338] Kernel Offset: disabled [ 18.960851][ T338] Rebooting in 86400 seconds..