Warning: Permanently added '10.128.0.33' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.945578] F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) [ 36.953006] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock [ 36.962908] F2FS-fs (loop0): invalid crc value [ 36.997741] F2FS-fs (loop0): access invalid blkaddr:5578753 [ 37.003517] ------------[ cut here ]------------ [ 37.009543] WARNING: CPU: 0 PID: 8076 at fs/f2fs/checkpoint.c:166 f2fs_is_valid_blkaddr+0x35d/0xa20 [ 37.018719] Kernel panic - not syncing: panic_on_warn set ... [ 37.018719] [ 37.026067] CPU: 0 PID: 8076 Comm: syz-executor146 Not tainted 4.19.211-syzkaller #0 [ 37.033926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.043267] Call Trace: [ 37.045843] dump_stack+0x1fc/0x2ef [ 37.049451] panic+0x26a/0x50e [ 37.052627] ? __warn_printk+0xf3/0xf3 [ 37.056583] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 37.061321] ? __probe_kernel_read+0x130/0x1b0 [ 37.065883] ? __warn.cold+0x5/0x5a [ 37.069587] ? __warn+0xe4/0x200 [ 37.072964] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 37.077726] __warn.cold+0x20/0x5a [ 37.081263] ? f2fs_is_valid_blkaddr+0x35d/0xa20 [ 37.086007] report_bug+0x262/0x2b0 [ 37.089626] do_error_trap+0x1d7/0x310 [ 37.093496] ? math_error+0x310/0x310 [ 37.097280] ? __irq_work_queue_local+0x101/0x160 [ 37.102103] ? irq_work_queue+0x29/0x80 [ 37.106061] ? error_entry+0x72/0xd0 [ 37.109753] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.114754] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.119585] invalid_op+0x14/0x20 [ 37.123024] RIP: 0010:f2fs_is_valid_blkaddr+0x35d/0xa20 [ 37.128367] 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 [ 37.147247] RSP: 0018:ffff8880a1a6f740 EFLAGS: 00010282 [ 37.152588] RAX: 0000000000000024 RBX: 0000000000000005 RCX: 0000000000000000 [ 37.159842] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed101434deda [ 37.167090] RBP: ffff8880b13c01c0 R08: 0000000000000024 R09: 0000000000000000 [ 37.174338] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000552001 [ 37.181586] R13: ffff8880af4b5a00 R14: 0000000000004000 R15: 0000000000000400 [ 37.188852] ? vprintk_func+0x81/0x180 [ 37.192725] f2fs_submit_page_bio+0x138/0x1580 [ 37.197289] ? page_cache_tree_insert+0x3f0/0x3f0 [ 37.202113] ? check_preemption_disabled+0x41/0x280 [ 37.207113] read_node_page+0x496/0x630 [ 37.211070] ? truncate_node+0x10c0/0x10c0 [ 37.215284] ? add_to_page_cache_lru+0x259/0x680 [ 37.220030] ? add_to_page_cache_locked+0x40/0x40 [ 37.224856] ? pagecache_get_page+0x1c4/0xd50 [ 37.229336] __get_node_page.part.0+0x9b/0x14b0 [ 37.233989] f2fs_get_node_page+0x109/0x1a0 [ 37.238290] f2fs_iget+0x22a/0x4ce0 [ 37.241898] ? wait_for_completion_io+0x10/0x10 [ 37.246561] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.251563] f2fs_fill_super+0x34b4/0x7050 [ 37.255792] ? snprintf+0xbb/0xf0 [ 37.259279] ? f2fs_commit_super+0x400/0x400 [ 37.263685] ? wait_for_completion_io+0x10/0x10 [ 37.268336] ? set_blocksize+0x163/0x3f0 [ 37.272380] mount_bdev+0x2fc/0x3b0 [ 37.276022] ? f2fs_commit_super+0x400/0x400 [ 37.280411] mount_fs+0xa3/0x310 [ 37.283763] vfs_kern_mount.part.0+0x68/0x470 [ 37.288240] do_mount+0x115c/0x2f50 [ 37.291846] ? lock_acquire+0x170/0x3c0 [ 37.295799] ? check_preemption_disabled+0x41/0x280 [ 37.300798] ? copy_mount_string+0x40/0x40 [ 37.305012] ? copy_mount_options+0x59/0x380 [ 37.309401] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.314407] ? kmem_cache_alloc_trace+0x323/0x380 [ 37.319232] ? copy_mount_options+0x26f/0x380 [ 37.323709] ksys_mount+0xcf/0x130 [ 37.327233] __x64_sys_mount+0xba/0x150 [ 37.331193] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.335756] do_syscall_64+0xf9/0x620 [ 37.339542] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.344729] RIP: 0033:0x7f336160649a [ 37.348426] 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 [ 37.367482] RSP: 002b:00007ffdfbc7b3d8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 37.375263] RAX: ffffffffffffffda RBX: 00007ffdfbc7b430 RCX: 00007f336160649a [ 37.382513] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffdfbc7b3f0 [ 37.389762] RBP: 00007ffdfbc7b3f0 R08: 00007ffdfbc7b430 R09: 0000000000000000 [ 37.397011] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000200002d8 [ 37.404260] R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000009 [ 37.411865] Kernel Offset: disabled [ 37.415545] Rebooting in 86400 seconds..