[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.125' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.791476] F2FS-fs (loop0): invalid crc value [ 34.796792] F2FS-fs (loop0): Ignore s_resuid=60928, s_resgid=0 w/o reserve_root [ 34.808018] F2FS-fs (loop0): Found nat_bits in checkpoint [ 34.835910] F2FS-fs (loop0): access invalid blkaddr:1073 [ 34.841523] ------------[ cut here ]------------ [ 34.846462] WARNING: CPU: 0 PID: 8094 at fs/f2fs/checkpoint.c:166 f2fs_is_valid_blkaddr+0x35d/0xa20 [ 34.855630] Kernel panic - not syncing: panic_on_warn set ... [ 34.855630] [ 34.862981] CPU: 0 PID: 8094 Comm: syz-executor295 Not tainted 4.19.211-syzkaller #0 [ 34.870837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 34.880168] Call Trace: [ 34.882748] dump_stack+0x1fc/0x2ef [ 34.886360] panic+0x26a/0x50e [ 34.889534] ? __warn_printk+0xf3/0xf3 [ 34.893406] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 34.898142] ? __probe_kernel_read+0x130/0x1b0 [ 34.902725] ? __warn.cold+0x5/0x5a [ 34.906529] ? __warn+0xe4/0x200 [ 34.909877] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 34.914612] __warn.cold+0x20/0x5a [ 34.918131] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 34.922875] report_bug+0x262/0x2b0 [ 34.926489] do_error_trap+0x1d7/0x310 [ 34.930360] ? math_error+0x310/0x310 [ 34.934140] ? irq_work_claim+0xa6/0xc0 [ 34.938100] ? irq_work_queue+0x29/0x80 [ 34.942055] ? error_entry+0x72/0xd0 [ 34.945752] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.950750] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.955716] invalid_op+0x14/0x20 [ 34.959312] RIP: 0010:f2fs_is_valid_blkaddr+0x35d/0xa20 [ 34.964667] Code: 7a 06 00 00 48 8b 7d 00 44 89 e1 48 c7 c2 40 1a a8 88 48 c7 c6 e0 18 a8 88 e8 bf fa fd ff 48 c7 c7 80 1a a8 88 e8 fe 34 de 04 <0f> 0b 45 31 ed e9 3f fe ff ff e8 84 03 4d fe 48 8d bd 40 01 00 00 [ 34.983555] RSP: 0018:ffff8880929ef740 EFLAGS: 00010282 [ 34.988908] RAX: 0000000000000024 RBX: 0000000000000005 RCX: 0000000000000000 [ 34.996197] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed101253deda [ 35.003463] RBP: ffff888099140140 R08: 0000000000000024 R09: 0000000000000000 [ 35.010718] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000431 [ 35.017971] R13: 0000000000000001 R14: 0000000000001000 R15: 0000000000000200 [ 35.025241] ? vprintk_func+0x81/0x180 [ 35.029133] f2fs_submit_page_bio+0x138/0x1580 [ 35.033715] ? page_cache_tree_insert+0x3f0/0x3f0 [ 35.038549] ? check_preemption_disabled+0x41/0x280 [ 35.043557] read_node_page+0x496/0x630 [ 35.047516] ? truncate_node+0x10c0/0x10c0 [ 35.051734] ? add_to_page_cache_lru+0x259/0x680 [ 35.056473] ? add_to_page_cache_locked+0x40/0x40 [ 35.061302] ? pagecache_get_page+0x1c4/0xd50 [ 35.065785] __get_node_page.part.0+0x9b/0x14b0 [ 35.070524] f2fs_get_node_page+0x109/0x1a0 [ 35.074827] f2fs_iget+0x22a/0x4ce0 [ 35.078437] ? wait_for_completion_io+0x10/0x10 [ 35.083126] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.088185] f2fs_fill_super+0x34b4/0x7050 [ 35.092422] ? snprintf+0xbb/0xf0 [ 35.095859] ? f2fs_commit_super+0x400/0x400 [ 35.100250] ? wait_for_completion_io+0x10/0x10 [ 35.104895] ? set_blocksize+0x163/0x3f0 [ 35.108946] mount_bdev+0x2fc/0x3b0 [ 35.112555] ? f2fs_commit_super+0x400/0x400 [ 35.116943] mount_fs+0xa3/0x310 [ 35.120293] vfs_kern_mount.part.0+0x68/0x470 [ 35.124774] do_mount+0x115c/0x2f50 [ 35.128382] ? lock_acquire+0x170/0x3c0 [ 35.132339] ? check_preemption_disabled+0x41/0x280 [ 35.137336] ? copy_mount_string+0x40/0x40 [ 35.141553] ? copy_mount_options+0x59/0x380 [ 35.145943] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.150945] ? kmem_cache_alloc_trace+0x323/0x380 [ 35.155776] ? copy_mount_options+0x26f/0x380 [ 35.160255] ksys_mount+0xcf/0x130 [ 35.163778] __x64_sys_mount+0xba/0x150 [ 35.167860] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.172719] do_syscall_64+0xf9/0x620 [ 35.176510] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.181679] RIP: 0033:0x7f5a7cf80f7a [ 35.185370] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.204248] RSP: 002b:00007ffcbb2fba48 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.211936] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a7cf80f7a [ 35.219197] RDX: 00000000200105c0 RSI: 0000000020010600 RDI: 00007ffcbb2fba60 [ 35.226451] RBP: 00007ffcbb2fba60 R08: 00007ffcbb2fbaa0 R09: 00007ffcbb2fbab0 [ 35.235696] R10: 0000000000400002 R11: 0000000000000286 R12: 0000000000000004 [ 35.243128] R13: 00005555573e82c0 R14: 0000000000400002 R15: 00007ffcbb2fbaa0 [ 35.250779] Kernel Offset: disabled [ 35.254479] Rebooting in 86400 seconds..