loop3: detected capacity change from 0 to 262144
F2FS-fs (loop3): invalid crc value
F2FS-fs (loop3): Found nat_bits in checkpoint
F2FS-fs (loop3): Start checkpoint disabled!
F2FS-fs (loop3): Mounted with checkpoint version = 48b305e5
------------[ cut here ]------------
kernel BUG at fs/f2fs/segment.c:835!
invalid opcode: 0000 [#1] SMP
CPU: 1 PID: 2771 Comm: syz.3.16 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__locate_dirty_segment+0x1ac/0x1b0 fs/f2fs/segment.c:835
Code: 8b 87 1c 09 00 00 31 d2 f7 f1 39 f0 74 19 8b 87 6c 0a 00 00 31 d2 f7 f1 39 f0 74 0b 49 8b 40 48 89 f6 f0 48 0f ab 30 c3 0f 0b <0f> 0b 66 90 55 53 44 8b 8f dc 0d 00 00 44 8b 87 d4 0d 00 00 8b 97
RSP: 0018:ffffc9000173b9e8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8881791d31b0 RCX: 0000000000000002
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881689ac000
RBP: 0000000000000009 R08: ffff88810819de00 R09: ffff88810a4ec400
R10: ffff88817a023400 R11: 0000000000000000 R12: ffff8881689ac000
R13: ffff88810819de50 R14: 0000000000000200 R15: 0000000000000096
FS:  00007fd672e0b6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe907c12ed8 CR3: 000000017d1d8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 locate_dirty_segment+0xe9/0x1a0 fs/f2fs/segment.c:908
 f2fs_invalidate_blocks+0x9d/0xd0 fs/f2fs/segment.c:2382
 f2fs_truncate_data_blocks_range+0x14c/0x430 fs/f2fs/file.c:605
 truncate_dnode+0x52/0x90 fs/f2fs/node.c:943
 f2fs_truncate_inode_blocks+0x127/0x550 fs/f2fs/node.c:1155
 f2fs_do_truncate_blocks+0x18d/0x440 fs/f2fs/file.c:723
 f2fs_truncate_blocks+0x32/0xe0 fs/f2fs/file.c:751
 f2fs_truncate fs/f2fs/file.c:803 [inline]
 f2fs_truncate+0xee/0x1f0 fs/f2fs/file.c:774
 f2fs_setattr+0x38e/0x4e0 fs/f2fs/file.c:981
 notify_change+0x3ab/0x550 fs/attr.c:505
 do_truncate+0x7b/0xd0 fs/open.c:65
 handle_truncate fs/namei.c:3265 [inline]
 do_open fs/namei.c:3612 [inline]
 path_openat+0x889/0xb00 fs/namei.c:3742
 do_filp_open+0xa4/0x150 fs/namei.c:3769
 do_sys_openat2+0x92/0x160 fs/open.c:1253
 do_sys_open fs/open.c:1269 [inline]
 __do_sys_creat fs/open.c:1345 [inline]
 __se_sys_creat fs/open.c:1339 [inline]
 __x64_sys_creat+0x44/0x60 fs/open.c:1339
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fd673391d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd672e0b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fd673581fa0 RCX: 00007fd673391d29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007fd67340db08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd673581fa0 R15: 00007ffd11a83f48
 </TASK>
Modules linked in:
---[ end trace 578a6af5816180ab ]---
RIP: 0010:__locate_dirty_segment+0x1ac/0x1b0 fs/f2fs/segment.c:835
Code: 8b 87 1c 09 00 00 31 d2 f7 f1 39 f0 74 19 8b 87 6c 0a 00 00 31 d2 f7 f1 39 f0 74 0b 49 8b 40 48 89 f6 f0 48 0f ab 30 c3 0f 0b <0f> 0b 66 90 55 53 44 8b 8f dc 0d 00 00 44 8b 87 d4 0d 00 00 8b 97
RSP: 0018:ffffc9000173b9e8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8881791d31b0 RCX: 0000000000000002
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881689ac000
RBP: 0000000000000009 R08: ffff88810819de00 R09: ffff88810a4ec400
R10: ffff88817a023400 R11: 0000000000000000 R12: ffff8881689ac000
R13: ffff88810819de50 R14: 0000000000000200 R15: 0000000000000096
FS:  00007fd672e0b6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe907c12ed8 CR3: 000000017d1d8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400