Starting OpenBSD Secure Shell server... Starting Permit User Sessions... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.83' (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 (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)[ 20.093452][ T22] audit: type=1400 audit(1612157433.138:8): avc: denied { execmem } for pid=360 comm="syz-executor417" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 20.126726][ T363] incfs: Can't find or create .index dir in ./file0 [ 20.135406][ T364] BUG: Dentry 000000009fb05929{i=0,n=.index} still in use (1) [unmount of tmpfs tmpfs] [ 20.145858][ T364] ------------[ cut here ]------------ [ 20.151738][ T364] WARNING: CPU: 1 PID: 364 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 20.160685][ T364] Kernel panic - not syncing: panic_on_warn set ... [ 20.167593][ T364] CPU: 1 PID: 364 Comm: syz-executor417 Not tainted 5.4.93-syzkaller-00590-g1e5f5a14faba #0 [ 20.182353][ T364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.192873][ T364] Call Trace: [ 20.196385][ T364] dump_stack+0x1dd/0x24e [ 20.201974][ T364] ? devkmsg_release+0x11c/0x11c [ 20.207027][ T364] ? show_regs_print_info+0x12/0x12 [ 20.212966][ T364] ? vprintk_store+0x690/0x690 [ 20.218909][ T364] ? console_trylock+0x166/0x1c0 [ 20.225583][ T364] ? umount_check+0x120/0x1c0 [ 20.230589][ T364] ? umount_check+0x120/0x1c0 [ 20.236334][ T364] panic+0x285/0x750 [ 20.240371][ T364] ? __warn+0xfa/0x200 [ 20.244453][ T364] ? nmi_panic+0x90/0x90 [ 20.248889][ T364] ? devkmsg_release+0x11c/0x11c [ 20.254323][ T364] ? is_valid_bugaddr+0xa0/0x150 [ 20.259633][ T364] ? umount_check+0x179/0x1c0 [ 20.264328][ T364] __warn+0x1fd/0x200 [ 20.269618][ T364] ? umount_check+0x179/0x1c0 [ 20.279392][ T364] report_bug+0x390/0x4d0 [ 20.284323][ T364] ? umount_check+0x179/0x1c0 [ 20.289690][ T364] do_invalid_op+0x6e/0x110 [ 20.295194][ T364] invalid_op+0x1e/0x30 [ 20.299670][ T364] RIP: 0010:umount_check+0x179/0x1c0 [ 20.305229][ T364] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 63 55 1d 85 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 07 36 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 [ 20.327867][ T364] RSP: 0018:ffff8881e8837708 EFLAGS: 00010282 [ 20.334113][ T364] RAX: 0000000000000055 RBX: ffffffff8546c8a0 RCX: a3b0bfbbf6f45b00 [ 20.342288][ T364] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 20.350287][ T364] RBP: ffff8881e8825420 R08: ffffffff814e47a1 R09: ffffed103ee25e08 [ 20.358522][ T364] R10: ffffed103ee25e08 R11: 0000000000000000 R12: dffffc0000000000 [ 20.367042][ T364] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881effd7110 [ 20.375304][ T364] ? vprintk_emit+0x3b1/0x500 [ 20.380025][ T364] d_walk+0x2e9/0x570 [ 20.384579][ T364] ? __d_free+0x20/0x20 [ 20.388822][ T364] shrink_dcache_for_umount+0x8a/0x1b0 [ 20.394324][ T364] generic_shutdown_super+0x63/0x2a0 [ 20.399602][ T364] kill_litter_super+0x71/0xa0 [ 20.404568][ T364] deactivate_locked_super+0xaf/0x100 [ 20.410146][ T364] deactivate_super+0x1b8/0x280 [ 20.415181][ T364] ? deactivate_locked_super+0x100/0x100 [ 20.421054][ T364] ? dput+0x4ed/0x5e0 [ 20.425099][ T364] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.430489][ T364] ? find_next_bit+0xd8/0x120 [ 20.435408][ T364] cleanup_mnt+0x432/0x4e0 [ 20.439852][ T364] task_work_run+0x176/0x1a0 [ 20.444450][ T364] do_exit+0xcc2/0x2830 [ 20.448620][ T364] ? mm_update_next_owner+0x5d0/0x5d0 [ 20.454183][ T364] ? futex_exit_release+0xc0/0xc0 [ 20.459350][ T364] ? __kasan_slab_free+0x1f2/0x230 [ 20.464900][ T364] ? __kasan_slab_free+0x17e/0x230 [ 20.470087][ T364] ? slab_free_freelist_hook+0xd0/0x150 [ 20.476192][ T364] ? kmem_cache_free+0xac/0x610 [ 20.481198][ T364] ? do_sys_open+0x62b/0x7b0 [ 20.485781][ T364] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.490985][ T364] ? _raw_spin_lock_irqsave+0x210/0x210 [ 20.498596][ T364] do_group_exit+0x155/0x2b0 [ 20.504975][ T364] get_signal+0x13ec/0x1f00 [ 20.509690][ T364] ? ptrace_notify+0x340/0x340 [ 20.514782][ T364] ? slab_free_freelist_hook+0xd0/0x150 [ 20.522407][ T364] ? do_sys_open+0x62b/0x7b0 [ 20.527178][ T364] ? kmem_cache_free+0xac/0x610 [ 20.534496][ T364] do_signal+0x92/0x5d0 [ 20.539321][ T364] ? __se_sys_futex+0x34d/0x470 [ 20.545287][ T364] ? signal_fault+0x1f0/0x1f0 [ 20.550902][ T364] ? ksys_mount+0xe0/0xf0 [ 20.555569][ T364] ? __x64_sys_futex+0x1d/0xf0 [ 20.561391][ T364] prepare_exit_to_usermode+0x207/0x310 [ 20.567961][ T364] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.575154][ T364] RIP: 0033:0x449f69 [ 20.579296][ T364] Code: Bad RIP value. [ 20.583545][ T364] RSP: 002b:00007f3bb7b212f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 20.592400][ T364] RAX: fffffffffffffe00 RBX: 00000000004cb4d0 RCX: 0000000000449f69 [ 20.600547][ T364] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cb4d8 [ 20.608945][ T364] RBP: 6e656d6572636e69 R08: 0000000000000000 R09: 0000000000000000 [ 20.616931][ T364] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 20.627810][ T364] R13: 766974616c65723d R14: 65646f6e695f726e R15: 00000000004cb4d8 [ 20.638448][ T364] Kernel Offset: disabled [ 20.645333][ T364] Rebooting in 86400 seconds..