F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
------------[ cut here ]------------
kernel BUG at fs/f2fs/segment.c:3481!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 13236 Comm: syz.0.2077 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:f2fs_allocate_data_block+0x3f08/0x3f50 fs/f2fs/segment.c:3481
Code: 21 fe 48 8b 54 24 30 e9 c6 eb ff ff e8 b1 b6 c9 fd 48 c7 c7 90 b9 2f 8d 4c 89 f6 e8 42 f4 95 00 e9 e2 eb ff ff e8 98 b6 c9 fd <0f> 0b e8 91 b6 c9 fd 0f 0b e8 8a b6 c9 fd 0f 0b e8 83 b6 c9 fd 0f
RSP: 0018:ffffc90004d0f830 EFLAGS: 00010283
RAX: ffffffff83bbd8c8 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc9000c969000 RSI: 0000000000032f0d RDI: 0000000000032f0e
RBP: 0000000000000200 R08: ffff8880257e885f R09: 1ffff11004afd10b
R10: dffffc0000000000 R11: ffffed1004afd10c R12: 1ffff920009a1f7c
R13: 0000000000000000 R14: 0000000000002400 R15: dffffc0000000000
FS:  00007fa6e59846c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa6e5962f98 CR3: 0000000025eb3000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 __allocate_data_block fs/f2fs/data.c:1421 [inline]
 f2fs_map_blocks+0x12dd/0x3db0 fs/f2fs/data.c:1604
 f2fs_expand_inode_data+0x65e/0xa10 fs/f2fs/file.c:1845
 f2fs_fallocate+0x416/0x8a0 fs/f2fs/file.c:1948
 vfs_fallocate+0x58e/0x700 fs/open.c:324
 ksys_fallocate fs/open.c:347 [inline]
 __do_sys_fallocate fs/open.c:355 [inline]
 __se_sys_fallocate fs/open.c:353 [inline]
 __x64_sys_fallocate+0xc1/0x110 fs/open.c:353
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa6e4b8efc9
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:00007fa6e5984038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fa6e4de5fa0 RCX: 00007fa6e4b8efc9
RDX: 000000000000fc01 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fa6e4c11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000001000f4 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa6e4de6038 R14: 00007fa6e4de5fa0 R15: 00007fffc3fa9808
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:f2fs_allocate_data_block+0x3f08/0x3f50 fs/f2fs/segment.c:3481
Code: 21 fe 48 8b 54 24 30 e9 c6 eb ff ff e8 b1 b6 c9 fd 48 c7 c7 90 b9 2f 8d 4c 89 f6 e8 42 f4 95 00 e9 e2 eb ff ff e8 98 b6 c9 fd <0f> 0b e8 91 b6 c9 fd 0f 0b e8 8a b6 c9 fd 0f 0b e8 83 b6 c9 fd 0f
RSP: 0018:ffffc90004d0f830 EFLAGS: 00010283
RAX: ffffffff83bbd8c8 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc9000c969000 RSI: 0000000000032f0d RDI: 0000000000032f0e
RBP: 0000000000000200 R08: ffff8880257e885f R09: 1ffff11004afd10b
R10: dffffc0000000000 R11: ffffed1004afd10c R12: 1ffff920009a1f7c
R13: 0000000000000000 R14: 0000000000002400 R15: dffffc0000000000
FS:  00007fa6e59846c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010030 CR3: 0000000025eb3000 CR4: 00000000003506f0