Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.5' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 62.136650][ T6872] F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) [ 62.144772][ T6872] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 62.155552][ T6872] F2FS-fs (loop0): invalid crc_offset: 0 [ 62.170163][ T6872] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=1, run fsck to fix. [ 62.179391][ T6872] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix. [ 62.206470][ T6872] F2FS-fs (loop0): access invalid blkaddr:1030372864 [ 62.213401][ T6872] ------------[ cut here ]------------ [ 62.220254][ T6872] WARNING: CPU: 1 PID: 6872 at fs/f2fs/checkpoint.c:189 f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 62.230895][ T6872] Kernel panic - not syncing: panic_on_warn set ... [ 62.237476][ T6872] CPU: 1 PID: 6872 Comm: syz-executor957 Not tainted 5.9.0-rc7-syzkaller #0 [ 62.246124][ T6872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.256416][ T6872] Call Trace: [ 62.259693][ T6872] dump_stack+0x198/0x1fd [ 62.264009][ T6872] panic+0x382/0x7fb [ 62.267900][ T6872] ? __warn_printk+0xf3/0xf3 [ 62.272491][ T6872] ? printk+0xba/0xed [ 62.276460][ T6872] ? log_store.cold+0x16/0x16 [ 62.281113][ T6872] ? printk+0xba/0xed [ 62.285090][ T6872] ? __warn.cold+0x5/0x4b [ 62.289398][ T6872] ? __warn+0xd6/0x1f2 [ 62.293449][ T6872] ? f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 62.298886][ T6872] __warn.cold+0x20/0x4b [ 62.303108][ T6872] ? f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 62.308561][ T6872] report_bug+0x1bd/0x210 [ 62.312884][ T6872] handle_bug+0x38/0x90 [ 62.317032][ T6872] exc_invalid_op+0x14/0x40 [ 62.321512][ T6872] asm_exc_invalid_op+0x12/0x20 [ 62.326352][ T6872] RIP: 0010:f2fs_is_valid_blkaddr+0xdb2/0xf80 [ 62.332416][ T6872] Code: 89 e2 48 89 df 48 c7 c6 e0 90 cd 88 e8 e7 fa fe ff 48 8d bb b8 00 00 00 be 08 00 00 00 e8 76 06 5e fe f0 80 8b b8 00 00 00 04 <0f> 0b e9 af f7 ff ff e8 02 34 5e fe e9 a5 fa ff ff e8 08 34 5e fe [ 62.352017][ T6872] RSP: 0018:ffffc9000139f738 EFLAGS: 00010206 [ 62.358067][ T6872] RAX: 0000000000000001 RBX: ffff88809378c000 RCX: ffffffff8358e08a [ 62.366035][ T6872] RDX: ffffed10126f1818 RSI: 0000000000000008 RDI: ffff88809378c0b8 [ 62.374003][ T6872] RBP: 0000000000000007 R08: 0000000000000001 R09: ffff88809378c0bf [ 62.381952][ T6872] R10: ffffed10126f1817 R11: 0000000000000000 R12: 000000003d6a3e00 [ 62.389900][ T6872] R13: ffff88809ce04000 R14: 0000000000004000 R15: 0000000000000200 [ 62.397875][ T6872] ? f2fs_is_valid_blkaddr+0xdaa/0xf80 [ 62.403574][ T6872] ? f2fs_is_valid_blkaddr+0xdaa/0xf80 [ 62.409025][ T6872] f2fs_get_node_info+0x4b4/0xbc0 [ 62.414029][ T6872] ? lru_cache_add+0x594/0xb40 [ 62.418776][ T6872] ? f2fs_try_to_free_nats+0x330/0x330 [ 62.424210][ T6872] ? lock_downgrade+0x7ad/0x830 [ 62.429922][ T6872] ? find_get_pages_range_tag+0xd40/0xd40 [ 62.435621][ T6872] read_node_page+0x4a6/0x9b0 [ 62.440273][ T6872] ? truncate_node+0x8d0/0x8d0 [ 62.445016][ T6872] ? lru_cache_add+0x5ca/0xb40 [ 62.449771][ T6872] ? pagecache_get_page+0x22b/0xf70 [ 62.454965][ T6872] __get_node_page.part.0+0xa2/0xac0 [ 62.460233][ T6872] f2fs_get_node_page+0x109/0x180 [ 62.465252][ T6872] f2fs_iget+0x233/0x4b10 [ 62.469559][ T6872] ? __mutex_unlock_slowpath+0xe2/0x610 [ 62.475167][ T6872] ? rcu_read_lock_sched_held+0x3a/0xb0 [ 62.480704][ T6872] ? wait_for_completion+0x260/0x260 [ 62.485976][ T6872] f2fs_fill_super+0x3ae8/0x6e80 [ 62.490907][ T6872] ? f2fs_commit_super+0x840/0x840 [ 62.495993][ T6872] ? set_blocksize+0x1c1/0x400 [ 62.500839][ T6872] mount_bdev+0x32e/0x3f0 [ 62.505146][ T6872] ? f2fs_commit_super+0x840/0x840 [ 62.510232][ T6872] ? __bpf_trace_f2fs_fiemap+0x1b0/0x1b0 [ 62.515856][ T6872] legacy_get_tree+0x105/0x220 [ 62.520610][ T6872] vfs_get_tree+0x89/0x2f0 [ 62.525019][ T6872] path_mount+0x1387/0x20a0 [ 62.529502][ T6872] ? strncpy_from_user+0x2bf/0x3e0 [ 62.534608][ T6872] ? copy_mount_string+0x40/0x40 [ 62.539535][ T6872] ? getname_flags.part.0+0x1dd/0x4f0 [ 62.545869][ T6872] __x64_sys_mount+0x27f/0x300 [ 62.550690][ T6872] ? copy_mnt_ns+0xa60/0xa60 [ 62.555277][ T6872] ? check_preemption_disabled+0x50/0x130 [ 62.560988][ T6872] ? syscall_enter_from_user_mode+0x1d/0x60 [ 62.566863][ T6872] do_syscall_64+0x2d/0x70 [ 62.571259][ T6872] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.577129][ T6872] RIP: 0033:0x44708a [ 62.581007][ T6872] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 62.600591][ T6872] RSP: 002b:00007ffc34539ab8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 62.611854][ T6872] RAX: ffffffffffffffda RBX: 00007ffc34539b10 RCX: 000000000044708a [ 62.619803][ T6872] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc34539ad0 [ 62.627852][ T6872] RBP: 00007ffc34539ad0 R08: 00007ffc34539b10 R09: 00007ffc00000015 [ 62.635816][ T6872] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000009 [ 62.644721][ T6872] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 62.654175][ T6872] Kernel Offset: disabled [ 62.658555][ T6872] Rebooting in 86400 seconds..