Warning: Permanently added '10.128.10.18' (ECDSA) to the list of known hosts. [** ] 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 (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 (13s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (17s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (18s / 1min 30s)[ *] A start job is running for dev-ttyS0.device (18s / 1min 30s)[ 25.181999][ T22] audit: type=1400 audit(1614538877.720:8): avc: denied { execmem } for pid=340 comm="syz-executor677" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 25.207747][ T343] F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) [ 25.217471][ T343] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock [ 25.227203][ T343] F2FS-fs (loop0): invalid crc_offset: 0 [ 25.239104][ T343] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=1, run fsck to fix. [ 25.247942][ T343] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix. [ 25.269504][ T343] F2FS-fs (loop0): recover fsync data on readonly fs [ 25.329550][ T343] F2FS-fs (loop0): Try to recover 2th superblock, ret: -30 [ 25.336758][ T343] F2FS-fs (loop0): Mounted with checkpoint version = 6ff99717 [ 25.347477][ T350] incfs: Can't find or create .index dir in ./file0 [ 25.355813][ T350] BUG: Dentry 00000000fc7a8954{i=0,n=.index} still in use (1) [unmount of f2fs loop0] [ 25.365562][ T350] ------------[ cut here ]------------ [ 25.371009][ T350] WARNING: CPU: 1 PID: 350 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 25.379341][ T350] Kernel panic - not syncing: panic_on_warn set ... [ 25.385897][ T350] CPU: 1 PID: 350 Comm: syz-executor677 Not tainted 5.4.101-syzkaller-00440-g55e9d3c6b5f7 #0 [ 25.396008][ T350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.406814][ T350] Call Trace: [ 25.410166][ T350] dump_stack+0x1d8/0x24e [ 25.414478][ T350] ? devkmsg_release+0x11c/0x11c [ 25.419388][ T350] ? show_regs_print_info+0x12/0x12 [ 25.424560][ T350] ? vprintk_store+0x680/0x680 [ 25.429293][ T350] ? console_trylock+0x166/0x1c0 [ 25.434240][ T350] ? umount_check+0x170/0x1c0 [ 25.438891][ T350] ? umount_check+0x170/0x1c0 [ 25.443544][ T350] panic+0x285/0x740 [ 25.447409][ T350] ? __warn+0xfa/0x200 [ 25.451539][ T350] ? nmi_panic+0x90/0x90 [ 25.455772][ T350] ? devkmsg_release+0x11c/0x11c [ 25.460681][ T350] ? is_valid_bugaddr+0xa0/0x150 [ 25.465589][ T350] ? umount_check+0x179/0x1c0 [ 25.470234][ T350] __warn+0x1f1/0x200 [ 25.474240][ T350] ? umount_check+0x179/0x1c0 [ 25.478895][ T350] report_bug+0x380/0x4d0 [ 25.483291][ T350] ? umount_check+0x179/0x1c0 [ 25.487937][ T350] do_invalid_op+0x6e/0x110 [ 25.492410][ T350] invalid_op+0x1e/0x30 [ 25.496536][ T350] RIP: 0010:umount_check+0x179/0x1c0 [ 25.501791][ T350] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 00 d1 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 [ 25.521374][ T350] RSP: 0018:ffff8881dc85f640 EFLAGS: 00010292 [ 25.527408][ T350] RAX: 0000000000000054 RBX: ffffffff85ff2dc0 RCX: 604bf155b4a2d900 [ 25.535347][ T350] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 25.543285][ T350] RBP: ffff8881dfa55420 R08: ffffffff814e6247 R09: ffffed103ede5e08 [ 25.551223][ T350] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 25.559176][ T350] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881dfe0edd0 [ 25.567132][ T350] ? vprintk_emit+0x457/0x4c0 [ 25.571783][ T350] d_walk+0x2d9/0x540 [ 25.575731][ T350] ? __d_free+0x20/0x20 [ 25.579853][ T350] shrink_dcache_for_umount+0x8a/0x1a0 [ 25.585282][ T350] generic_shutdown_super+0x63/0x2a0 [ 25.590530][ T350] kill_block_super+0x79/0xd0 [ 25.595175][ T350] kill_f2fs_super+0x29d/0x330 [ 25.599906][ T350] ? f2fs_mount+0x40/0x40 [ 25.604202][ T350] ? radix_tree_delete_item+0x22a/0x320 [ 25.609711][ T350] ? unregister_shrinker+0x1f7/0x260 [ 25.614962][ T350] deactivate_locked_super+0xaf/0x100 [ 25.620299][ T350] deactivate_super+0x1b3/0x270 [ 25.625114][ T350] ? deactivate_locked_super+0x100/0x100 [ 25.630747][ T350] ? dput+0x4de/0x5d0 [ 25.634706][ T350] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 25.639795][ T350] ? find_next_bit+0xc6/0x110 [ 25.644439][ T350] cleanup_mnt+0x432/0x4e0 [ 25.648823][ T350] task_work_run+0x186/0x1b0 [ 25.653378][ T350] do_exit+0xcb9/0x2bf0 [ 25.657587][ T350] ? mm_update_next_owner+0x5c0/0x5c0 [ 25.662923][ T350] ? check_preemption_disabled+0x154/0x330 [ 25.668695][ T350] ? futex_exit_release+0xc0/0xc0 [ 25.673793][ T350] ? debug_smp_processor_id+0x20/0x20 [ 25.679137][ T350] ? stack_trace_snprint+0x150/0x150 [ 25.684390][ T350] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 25.689473][ T350] ? _raw_spin_lock_irqsave+0x210/0x210 [ 25.695070][ T350] do_group_exit+0x15c/0x2c0 [ 25.699629][ T350] get_signal+0x164f/0x1fc0 [ 25.704102][ T350] ? ptrace_notify+0x340/0x340 [ 25.708841][ T350] do_signal+0x92/0x5c0 [ 25.713051][ T350] ? __se_sys_futex+0x352/0x470 [ 25.717867][ T350] ? kfree+0xe0/0x660 [ 25.721817][ T350] ? signal_fault+0x1e0/0x1e0 [ 25.726474][ T350] ? ksys_mount+0xe0/0xf0 [ 25.730767][ T350] ? __x64_sys_futex+0x1d/0xf0 [ 25.735496][ T350] prepare_exit_to_usermode+0x207/0x310 [ 25.741009][ T350] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 25.746865][ T350] RIP: 0033:0x44a389 [ 25.750753][ T350] Code: Bad RIP value. [ 25.754787][ T350] RSP: 002b:00007f026ca652f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 25.763159][ T350] RAX: 0000000000000001 RBX: 00000000004cb410 RCX: 000000000044a389 [ 25.771099][ T350] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000004cb41c [ 25.779036][ T350] RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 [ 25.786976][ T350] R10: 0000000000000000 R11: 0000000000000246 R12: 0300000000000000 [ 25.794924][ T350] R13: 0300000000030001 R14: 0000000100000003 R15: 00000000004cb418 [ 25.803442][ T350] Kernel Offset: disabled [ 25.807745][ T350] Rebooting in 86400 seconds..