Warning: Permanently added '10.128.1.119' (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)[ 17.458291][ T22] audit: type=1400 audit(1614779151.779:8): avc: denied { execmem } for pid=341 comm="syz-executor374" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 17.494075][ T342] incfs: Can't find or create .index dir in ./file0 [ 17.502793][ T342] BUG: Dentry 00000000f614dd9e{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 17.513164][ T342] ------------[ cut here ]------------ [ 17.518801][ T342] WARNING: CPU: 0 PID: 342 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 17.528219][ T342] Kernel panic - not syncing: panic_on_warn set ... [ 17.534976][ T342] CPU: 0 PID: 342 Comm: syz-executor374 Not tainted 5.4.101-syzkaller-00002-ga8baa288543d #0 [ 17.545382][ T342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.555535][ T342] Call Trace: [ 17.558826][ T342] dump_stack+0x1d8/0x24e [ 17.563151][ T342] ? devkmsg_release+0x11c/0x11c [ 17.568196][ T342] ? show_regs_print_info+0x12/0x12 [ 17.574025][ T342] ? vprintk_store+0x680/0x680 [ 17.578819][ T342] ? console_trylock+0x166/0x1c0 [ 17.583801][ T342] ? umount_check+0x170/0x1c0 [ 17.588731][ T342] ? umount_check+0x170/0x1c0 [ 17.593413][ T342] panic+0x285/0x740 [ 17.597301][ T342] ? __warn+0xfa/0x200 [ 17.601385][ T342] ? nmi_panic+0x90/0x90 [ 17.605729][ T342] ? devkmsg_release+0x11c/0x11c [ 17.610654][ T342] ? is_valid_bugaddr+0xa0/0x150 [ 17.615714][ T342] ? umount_check+0x179/0x1c0 [ 17.620510][ T342] __warn+0x1f1/0x200 [ 17.624508][ T342] ? umount_check+0x179/0x1c0 [ 17.629401][ T342] report_bug+0x380/0x4d0 [ 17.634375][ T342] ? umount_check+0x179/0x1c0 [ 17.639661][ T342] do_invalid_op+0x6e/0x110 [ 17.644582][ T342] invalid_op+0x1e/0x30 [ 17.648893][ T342] RIP: 0010:umount_check+0x179/0x1c0 [ 17.654179][ T342] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 80 d0 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 d7 3a 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 [ 17.674029][ T342] RSP: 0018:ffff8881e9717a58 EFLAGS: 00010282 [ 17.680094][ T342] RAX: 0000000000000055 RBX: ffffffff85fc4fe0 RCX: 4a9bc28c86ca7500 [ 17.688498][ T342] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 17.688505][ T342] RBP: ffff8881e90e1420 R08: ffffffff814e6247 R09: ffffed103edc5e08 [ 17.688510][ T342] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 17.688515][ T342] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efb52990 [ 17.688534][ T342] ? vprintk_emit+0x457/0x4c0 [ 17.688554][ T342] d_walk+0x2d9/0x540 [ 17.729576][ T342] ? __d_free+0x20/0x20 [ 17.733733][ T342] shrink_dcache_for_umount+0x8a/0x1a0 [ 17.739228][ T342] generic_shutdown_super+0x63/0x2a0 [ 17.744532][ T342] kill_block_super+0x79/0xd0 [ 17.749473][ T342] deactivate_locked_super+0xaf/0x100 [ 17.754871][ T342] deactivate_super+0x1b3/0x270 [ 17.760154][ T342] ? deactivate_locked_super+0x100/0x100 [ 17.766044][ T342] ? dput+0x4de/0x5d0 [ 17.770290][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 17.775450][ T342] ? find_next_bit+0xc6/0x110 [ 17.780162][ T342] cleanup_mnt+0x432/0x4e0 [ 17.784872][ T342] task_work_run+0x186/0x1b0 [ 17.789854][ T342] do_exit+0xcb9/0x2bf0 [ 17.794427][ T342] ? mm_update_next_owner+0x5c0/0x5c0 [ 17.799917][ T342] ? __up_read+0x6f/0x1b0 [ 17.804280][ T342] ? __down_read+0x210/0x210 [ 17.813831][ T342] ? check_preemption_disabled+0x154/0x330 [ 17.819628][ T342] ? debug_smp_processor_id+0x20/0x20 [ 17.824992][ T342] do_group_exit+0x15c/0x2c0 [ 17.829618][ T342] ? do_user_addr_fault+0x6b0/0xb40 [ 17.834809][ T342] __do_sys_exit_group+0x13/0x20 [ 17.839738][ T342] __se_sys_exit_group+0x10/0x10 [ 17.844668][ T342] __x64_sys_exit_group+0x37/0x40 [ 17.849805][ T342] do_syscall_64+0xcb/0x150 [ 17.854303][ T342] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 17.860185][ T342] RIP: 0033:0x4434c9 [ 17.864106][ T342] Code: Bad RIP value. [ 17.868177][ T342] RSP: 002b:00007ffcad91f268 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.876577][ T342] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 00000000004434c9 [ 17.884686][ T342] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 17.893204][ T342] RBP: 0000000000000001 R08: ffffffffffffffc4 R09: 0000000000000000 [ 17.901190][ T342] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 17.910064][ T342] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 17.918850][ T342] Kernel Offset: disabled [ 17.923338][ T342] Rebooting in 86400 seconds..