gfs2: fsid=syz:syz.0: fatal assertion failed
------------[ cut here ]------------
kernel BUG at fs/gfs2/quota.c:320!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 6082 Comm: syz.2.23 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline]
RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:705
Code: 00 00 00 00 00 fc ff df 48 8b 0c 24 80 3c 01 00 74 0a 48 8b 7c 24 10 e8 5d 3d 28 fe 48 8b 44 24 10 48 8b 38 e8 e0 89 2f fd 90 <0f> 0b e8 28 cf c4 fd 48 8b 7c 24 10 e8 ce 89 2f fd 90 0f 0b 66 66
RSP: 0018:ffffc90005107288 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff11009f0dc0e RCX: f36ef1fbb7a67e00
RDX: ffffc9000da1f000 RSI: 0000000000057b57 RDI: 0000000000057b58
RBP: ffffffffffffffdf R08: ffffc90005106fa7 R09: 1ffff92000a20df4
R10: dffffc0000000000 R11: fffff52000a20df5 R12: ffff88804f86e000
R13: ffff88804f86e070 R14: ffff88804f86e090 R15: 0000000000000000
FS:  00007f2d0f7d56c0(0000) GS:ffff888125c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f14247bf000 CR3: 000000005053f000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_quota_change+0x394/0x800 fs/gfs2/quota.c:1304
 punch_hole+0x2776/0x2cf0 fs/gfs2/bmap.c:1961
 gfs2_iomap_end+0x4f8/0x6c0 fs/gfs2/bmap.c:1178
 iomap_iter+0x316/0xde0 fs/iomap/iter.c:79
 iomap_file_buffered_write+0x7fa/0x9b0 fs/iomap/buffered-io.c:1065
 gfs2_file_buffered_write+0x4ed/0x880 fs/gfs2/file.c:1061
 gfs2_file_write_iter+0x94e/0x1100 fs/gfs2/file.c:1166
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x5c9/0xb30 fs/read_write.c:686
 ksys_write+0x145/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d1158ebe9
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:00007f2d0f7d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2d117c6090 RCX: 00007f2d1158ebe9
RDX: 000000000208e24b RSI: 0000200000000040 RDI: 0000000000000007
RBP: 00007f2d11611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2d117c6128 R14: 00007f2d117c6090 R15: 00007ffe27709c08
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline]
RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:705
Code: 00 00 00 00 00 fc ff df 48 8b 0c 24 80 3c 01 00 74 0a 48 8b 7c 24 10 e8 5d 3d 28 fe 48 8b 44 24 10 48 8b 38 e8 e0 89 2f fd 90 <0f> 0b e8 28 cf c4 fd 48 8b 7c 24 10 e8 ce 89 2f fd 90 0f 0b 66 66
RSP: 0018:ffffc90005107288 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff11009f0dc0e RCX: f36ef1fbb7a67e00
RDX: ffffc9000da1f000 RSI: 0000000000057b57 RDI: 0000000000057b58
RBP: ffffffffffffffdf R08: ffffc90005106fa7 R09: 1ffff92000a20df4
R10: dffffc0000000000 R11: fffff52000a20df5 R12: ffff88804f86e000
R13: ffff88804f86e070 R14: ffff88804f86e090 R15: 0000000000000000
FS:  00007f2d0f7d56c0(0000) GS:ffff888125c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f14247bf000 CR3: 000000005053f000 CR4: 0000000000350ef0