attempt to access beyond end of device loop0: rw=12288, want=20488, limit=16479 attempt to access beyond end of device loop0: rw=12288, want=20488, limit=16479 ------------[ cut here ]------------ kernel BUG at fs/f2fs/checkpoint.c:127! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8120 Comm: syz-executor481 Not tainted 4.19.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:f2fs_get_meta_page_nofail+0x12d/0x150 fs/f2fs/checkpoint.c:127 Code: e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 75 23 83 8b 84 00 00 00 08 4c 89 e6 4c 89 ef e8 0b 13 02 05 48 89 ef e8 83 a7 02 00 <0f> 0b e8 0c 16 84 fe eb 80 be 04 00 00 00 e8 f0 19 84 fe eb d1 0f RSP: 0018:ffff8880b0c3f8d0 EFLAGS: 00010293 RAX: ffff8880911fe440 RBX: ffff888094caa4c0 RCX: ffffffff83168141 RDX: 0000000000000000 RSI: ffffffff8313fa2d RDI: 0000000000000005 RBP: ffff888095f89140 R08: ffffffff8cd40820 R09: 0000000000000001 R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000286 R13: ffff888095f89638 R14: 0000000000000000 R15: ffff888095f89140 FS: 0000000002308880(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f27ae9d5020 CR3: 000000009c24e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __f2fs_build_free_nids+0x338/0x1020 fs/f2fs/node.c:2287 f2fs_build_free_nids fs/f2fs/node.c:2328 [inline] f2fs_build_node_manager+0x24c5/0x31d0 fs/f2fs/node.c:3052 f2fs_fill_super+0x31fd/0x7050 fs/f2fs/super.c:3022 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x113c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4470ca 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 RSP: 002b:00007ffeb4c35d38 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffeb4c35d90 RCX: 00000000004470ca RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffeb4c35d50 RBP: 00007ffeb4c35d50 R08: 00007ffeb4c35d90 R09: 00007ffe00000015 R10: 0000000000000000 R11: 0000000000000297 R12: 000000000000000e R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 Modules linked in: ---[ end trace 504b76a3de45e2ca ]--- RIP: 0010:f2fs_get_meta_page_nofail+0x12d/0x150 fs/f2fs/checkpoint.c:127 Code: e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 75 23 83 8b 84 00 00 00 08 4c 89 e6 4c 89 ef e8 0b 13 02 05 48 89 ef e8 83 a7 02 00 <0f> 0b e8 0c 16 84 fe eb 80 be 04 00 00 00 e8 f0 19 84 fe eb d1 0f RSP: 0018:ffff8880b0c3f8d0 EFLAGS: 00010293 RAX: ffff8880911fe440 RBX: ffff888094caa4c0 RCX: ffffffff83168141 RDX: 0000000000000000 RSI: ffffffff8313fa2d RDI: 0000000000000005 RBP: ffff888095f89140 R08: ffffffff8cd40820 R09: 0000000000000001 R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000286 R13: ffff888095f89638 R14: 0000000000000000 R15: ffff888095f89140 FS: 0000000002308880(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f27ae9d5020 CR3: 000000009c24e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400