F2FS-fs (loop0): invalid crc value
F2FS-fs (loop0): Found nat_bits in checkpoint
F2FS-fs (loop0): Start checkpoint disabled!
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
------------[ cut here ]------------
kernel BUG at fs/f2fs/segment.c:836!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5008 Comm: syz.0.16 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__locate_dirty_segment+0xa2c/0xa40 fs/f2fs/segment.c:835
Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 16 fd ff ff 4c 89 f7 e8 b5 dd 39 fe e9 09 fd ff ff e8 8b bd f4 fd 0f 0b e8 84 bd f4 fd <0f> 0b e8 7d bd f4 fd 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 41
RSP: 0018:ffffc900030af2d8 EFLAGS: 00010293
RAX: ffffffff8384351c RBX: ffff88807d7a8000 RCX: ffff888078785940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888144ca92d7 R09: 1ffff1102899525a
R10: dffffc0000000000 R11: ffffed102899525b R12: dffffc0000000000
R13: 0000000000000002 R14: 1ffff1100faf502d R15: ffff88807d7a8168
FS:  00007f34152086c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e4569a000 CR3: 0000000076a89000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 locate_dirty_segment+0x3a4/0x500 fs/f2fs/segment.c:908
 f2fs_invalidate_blocks+0x27b/0x350 fs/f2fs/segment.c:2382
 f2fs_truncate_data_blocks_range+0x769/0xf00 fs/f2fs/file.c:605
 truncate_dnode fs/f2fs/node.c:953 [inline]
 f2fs_truncate_inode_blocks+0x6c8/0xef0 fs/f2fs/node.c:1172
 f2fs_do_truncate_blocks+0x58e/0x8d0 fs/f2fs/file.c:723
 f2fs_truncate_blocks+0x100/0x300 fs/f2fs/file.c:751
 f2fs_truncate+0x3e6/0x770 fs/f2fs/file.c:803
 f2fs_setattr+0xa8e/0x1160 fs/f2fs/file.c:981
 notify_change+0xbc6/0xee0 fs/attr.c:505
 do_truncate+0x1ac/0x240 fs/open.c:65
 handle_truncate fs/namei.c:3273 [inline]
 do_open fs/namei.c:3620 [inline]
 path_openat+0x293b/0x2fb0 fs/namei.c:3750
 do_filp_open+0x1df/0x400 fs/namei.c:3777
 do_sys_openat2+0x14b/0x500 fs/open.c:1255
 do_sys_open fs/open.c:1271 [inline]
 __do_sys_creat fs/open.c:1347 [inline]
 __se_sys_creat fs/open.c:1341 [inline]
 __x64_sys_creat+0x8c/0xb0 fs/open.c:1341
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3415f9a3b9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3415208028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f341619ffa0 RCX: 00007f3415f9a3b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007f34160259d4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f341619ffa0 R15: 00007ffee41d6368
 </TASK>
Modules linked in:
---[ end trace 03268aa929809e9a ]---
RIP: 0010:__locate_dirty_segment+0xa2c/0xa40 fs/f2fs/segment.c:835
Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 16 fd ff ff 4c 89 f7 e8 b5 dd 39 fe e9 09 fd ff ff e8 8b bd f4 fd 0f 0b e8 84 bd f4 fd <0f> 0b e8 7d bd f4 fd 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 41
RSP: 0018:ffffc900030af2d8 EFLAGS: 00010293
RAX: ffffffff8384351c RBX: ffff88807d7a8000 RCX: ffff888078785940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888144ca92d7 R09: 1ffff1102899525a
R10: dffffc0000000000 R11: ffffed102899525b R12: dffffc0000000000
R13: 0000000000000002 R14: 1ffff1100faf502d R15: ffff88807d7a8168
FS:  00007f34152086c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e4569a000 CR3: 0000000076a89000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400