[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.117' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.025060] F2FS-fs (loop0): Invalid blocksize (65536), supports only 4KB [ 36.025060] [ 36.034021] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 36.047795] F2FS-fs (loop0): Found nat_bits in checkpoint [ 36.073987] F2FS-fs (loop0): access invalid blkaddr:1048832 [ 36.079820] ------------[ cut here ]------------ [ 36.084765] WARNING: CPU: 0 PID: 8100 at fs/f2fs/checkpoint.c:166 f2fs_is_valid_blkaddr+0x35d/0xa20 [ 36.093971] Kernel panic - not syncing: panic_on_warn set ... [ 36.093971] [ 36.101330] CPU: 0 PID: 8100 Comm: syz-executor209 Not tainted 4.19.211-syzkaller #0 [ 36.109186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.118519] Call Trace: [ 36.121092] dump_stack+0x1fc/0x2ef [ 36.124702] panic+0x26a/0x50e [ 36.127876] ? __warn_printk+0xf3/0xf3 [ 36.131747] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 36.136503] ? __probe_kernel_read+0x130/0x1b0 [ 36.141075] ? __warn.cold+0x5/0x5a [ 36.144702] ? __warn+0xe4/0x200 [ 36.148067] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 36.152821] __warn.cold+0x20/0x5a [ 36.156357] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 36.161282] report_bug+0x262/0x2b0 [ 36.164898] do_error_trap+0x1d7/0x310 [ 36.168770] ? math_error+0x310/0x310 [ 36.172553] ? irq_work_claim+0xa6/0xc0 [ 36.176513] ? irq_work_queue+0x29/0x80 [ 36.180559] ? error_entry+0x72/0xd0 [ 36.184300] ? trace_hardirqs_off_caller+0x6e/0x210 [ 36.189323] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.194153] invalid_op+0x14/0x20 [ 36.197593] RIP: 0010:f2fs_is_valid_blkaddr+0x35d/0xa20 [ 36.202937] 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 [ 36.221911] RSP: 0018:ffff8880956ef740 EFLAGS: 00010282 [ 36.227265] RAX: 0000000000000024 RBX: 0000000000000005 RCX: 0000000000000000 [ 36.234516] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012addeda [ 36.241856] RBP: ffff888094e60000 R08: 0000000000000024 R09: 0000000000000000 [ 36.249114] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000100100 [ 36.256374] R13: ffff8880b4e3da80 R14: 0000000000004000 R15: 0000000000000200 [ 36.263644] ? vprintk_func+0x81/0x180 [ 36.267528] f2fs_submit_page_bio+0x138/0x1580 [ 36.272183] ? page_cache_tree_insert+0x3f0/0x3f0 [ 36.277040] ? check_preemption_disabled+0x41/0x280 [ 36.282054] read_node_page+0x496/0x630 [ 36.286017] ? truncate_node+0x10c0/0x10c0 [ 36.290247] ? add_to_page_cache_lru+0x259/0x680 [ 36.295002] ? add_to_page_cache_locked+0x40/0x40 [ 36.299839] ? pagecache_get_page+0x1c4/0xd50 [ 36.304332] __get_node_page.part.0+0x9b/0x14b0 [ 36.308990] f2fs_get_node_page+0x109/0x1a0 [ 36.313308] f2fs_iget+0x22a/0x4ce0 [ 36.316928] ? wait_for_completion_io+0x10/0x10 [ 36.321590] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.326601] f2fs_fill_super+0x34b4/0x7050 [ 36.330844] ? snprintf+0xbb/0xf0 [ 36.334292] ? f2fs_commit_super+0x400/0x400 [ 36.338688] ? wait_for_completion_io+0x10/0x10 [ 36.343338] ? set_blocksize+0x163/0x3f0 [ 36.347382] mount_bdev+0x2fc/0x3b0 [ 36.350994] ? f2fs_commit_super+0x400/0x400 [ 36.355387] mount_fs+0xa3/0x310 [ 36.358738] vfs_kern_mount.part.0+0x68/0x470 [ 36.363265] do_mount+0x115c/0x2f50 [ 36.366963] ? lock_acquire+0x170/0x3c0 [ 36.370922] ? check_preemption_disabled+0x41/0x280 [ 36.375922] ? copy_mount_string+0x40/0x40 [ 36.380140] ? copy_mount_options+0x59/0x380 [ 36.384539] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.389540] ? kmem_cache_alloc_trace+0x323/0x380 [ 36.394368] ? copy_mount_options+0x26f/0x380 [ 36.398846] ksys_mount+0xcf/0x130 [ 36.402370] __x64_sys_mount+0xba/0x150 [ 36.406332] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.410897] do_syscall_64+0xf9/0x620 [ 36.414683] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.419856] RIP: 0033:0x7fe5fa239d0a [ 36.423561] 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 [ 36.442834] RSP: 002b:00007ffe70edc438 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.450619] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe5fa239d0a [ 36.458044] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe70edc450 [ 36.465292] RBP: 00007ffe70edc450 R08: 00007ffe70edc490 R09: 00005555555c42c0 [ 36.472544] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 36.479798] R13: 00007ffe70edc490 R14: 000000000000003d R15: 00000000200007b8 [ 36.487510] Kernel Offset: disabled [ 36.491264] Rebooting in 86400 seconds..