Starting OpenBSD Secure Shell server... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty6. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.56' (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)[ *] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (14s / 1min [ 20.065015][ T22] audit: type=1400 audit(1615100324.777:8): avc: denied { execmem } for pid=335 comm="syz-executor835" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 30s)[ 20.112454][ T341] incfs: Can't find or create .index dir in ./file0 [ 20.214096][ T338] BUG: Dentry 00000000f392c898{i=0,n=.index} still in use (1) [unmount of 9p 9p] [ 20.223963][ T338] ------------[ cut here ]------------ [ 20.229437][ T338] WARNING: CPU: 0 PID: 338 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 20.237740][ T338] Kernel panic - not syncing: panic_on_warn set ... [ 20.244311][ T338] CPU: 0 PID: 338 Comm: syz-executor835 Not tainted 5.4.102-syzkaller-00363-g1bd00b1a96b5 #0 [ 20.254432][ T338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.264481][ T338] Call Trace: [ 20.267769][ T338] dump_stack+0x1d8/0x24e [ 20.272081][ T338] ? devkmsg_release+0x11c/0x11c [ 20.276997][ T338] ? show_regs_print_info+0x12/0x12 [ 20.282194][ T338] ? vprintk_store+0x680/0x680 [ 20.286951][ T338] ? console_trylock+0x166/0x1c0 [ 20.291881][ T338] ? umount_check+0x100/0x1c0 [ 20.296641][ T338] ? umount_check+0x100/0x1c0 [ 20.301303][ T338] panic+0x285/0x740 [ 20.305193][ T338] ? __warn+0xfa/0x200 [ 20.309238][ T338] ? nmi_panic+0x90/0x90 [ 20.313459][ T338] ? devkmsg_release+0x11c/0x11c [ 20.318389][ T338] ? is_valid_bugaddr+0xa0/0x150 [ 20.323328][ T338] ? umount_check+0x179/0x1c0 [ 20.327983][ T338] __warn+0x1f1/0x200 [ 20.331947][ T338] ? umount_check+0x179/0x1c0 [ 20.336616][ T338] report_bug+0x380/0x4d0 [ 20.340950][ T338] ? umount_check+0x179/0x1c0 [ 20.345646][ T338] do_invalid_op+0x6e/0x110 [ 20.350136][ T338] invalid_op+0x1e/0x30 [ 20.354276][ T338] RIP: 0010:umount_check+0x179/0x1c0 [ 20.359561][ T338] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 00 d5 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 e7 31 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 [ 20.379248][ T338] RSP: 0018:ffff8881e8e9f6f8 EFLAGS: 00010282 [ 20.385312][ T338] RAX: 000000000000004f RBX: ffffffff85fe5920 RCX: 687ddb4eb3e54e00 [ 20.393270][ T338] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 20.401227][ T338] RBP: ffff8881f14b0420 R08: ffffffff814e69c7 R09: ffffed103edc5e08 [ 20.409202][ T338] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 20.417170][ T338] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efbc5bb0 [ 20.425331][ T338] ? vprintk_emit+0x457/0x4c0 [ 20.429998][ T338] d_walk+0x2d9/0x540 [ 20.433967][ T338] ? __d_free+0x20/0x20 [ 20.438100][ T338] shrink_dcache_for_umount+0x8a/0x1a0 [ 20.443623][ T338] generic_shutdown_super+0x63/0x2a0 [ 20.448979][ T338] kill_anon_super+0x36/0x60 [ 20.453564][ T338] v9fs_kill_super+0x48/0x90 [ 20.458293][ T338] deactivate_locked_super+0xaf/0x100 [ 20.463661][ T338] deactivate_super+0x1b3/0x270 [ 20.468523][ T338] ? deactivate_locked_super+0x100/0x100 [ 20.474138][ T338] ? dput+0x4ec/0x5d0 [ 20.478138][ T338] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.483227][ T338] ? find_next_bit+0xc6/0x110 [ 20.487903][ T338] cleanup_mnt+0x432/0x4e0 [ 20.492315][ T338] task_work_run+0x186/0x1b0 [ 20.496918][ T338] do_exit+0xcb9/0x2bf0 [ 20.501074][ T338] ? mm_update_next_owner+0x5c0/0x5c0 [ 20.506433][ T338] ? pipe_write+0xf9c/0x11b0 [ 20.511009][ T338] ? futex_exit_release+0xc0/0xc0 [ 20.516012][ T338] ? avc_denied+0x1c0/0x1c0 [ 20.520514][ T338] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.525619][ T338] ? _raw_spin_lock_irqsave+0x210/0x210 [ 20.531168][ T338] do_group_exit+0x15c/0x2c0 [ 20.535747][ T338] get_signal+0x164f/0x1fc0 [ 20.540249][ T338] ? __kernel_write+0x340/0x340 [ 20.545076][ T338] ? ptrace_notify+0x340/0x340 [ 20.549826][ T338] ? __fsnotify_parent+0x310/0x310 [ 20.554924][ T338] do_signal+0x92/0x5c0 [ 20.559072][ T338] ? __se_sys_futex+0x352/0x470 [ 20.563917][ T338] ? fput_many+0x42/0x1a0 [ 20.568223][ T338] ? signal_fault+0x1e0/0x1e0 [ 20.572880][ T338] ? __fd_install+0x118/0x260 [ 20.577534][ T338] ? __x64_sys_futex+0x1d/0xf0 [ 20.582277][ T338] prepare_exit_to_usermode+0x207/0x310 [ 20.587818][ T338] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.593692][ T338] RIP: 0033:0x4458c9 [ 20.597580][ T338] Code: Bad RIP value. [ 20.601642][ T338] RSP: 002b:00007f7dc5f552f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 20.610054][ T338] RAX: fffffffffffffe00 RBX: 00000000004cb4e0 RCX: 00000000004458c9 [ 20.618026][ T338] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cb4e8 [ 20.626066][ T338] RBP: 000000000049b120 R08: 0000000000000000 R09: 0000000000000000 [ 20.634033][ T338] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 20.641988][ T338] R13: 6e656d6572636e69 R14: 64663d736e617274 R15: 00000000004cb4e8 [ 20.650024][ T338] Kernel Offset: disabled [ 20.654362][ T338] Rebooting in 86400 seconds..