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: 13805 Comm: syz.6.1838 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline]
RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:706
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 2d 9c 0e fe 48 8b 44 24 10 48 8b 38 e8 a0 b6 09 fd 90 <0f> 0b e8 d8 93 a4 fd 48 8b 7c 24 10 e8 8e b6 09 fd 90 0f 0b 66 66
RSP: 0018:ffffc900049cf9c8 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100a63fe8c RCX: 7d7bfb27d0573d00
RDX: ffffc90012523000 RSI: 0000000000003f6e RDI: 0000000000003f6f
RBP: ffffffffffffffff R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1cbd9ec R12: ffff8880531ff3f0
R13: ffff8880531ff460 R14: ffff8880531ff480 R15: 0000000000000000
FS:  00007f8c5820e6c0(0000) GS:ffff88812546a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e207ff8 CR3: 000000007c3e7000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_quota_change+0x391/0x800 fs/gfs2/quota.c:1305
 setattr_chown+0x40b/0x560 fs/gfs2/inode.c:2072
 gfs2_setattr+0x234/0x420 fs/gfs2/inode.c:2124
 notify_change+0xc1a/0xf40 fs/attr.c:556
 chown_common+0x466/0x6b0 fs/open.c:778
 vfs_fchown fs/open.c:843 [inline]
 ksys_fchown+0xe9/0x160 fs/open.c:855
 __do_sys_fchown fs/open.c:860 [inline]
 __se_sys_fchown fs/open.c:858 [inline]
 __x64_sys_fchown+0x7a/0x90 fs/open.c:858
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8c5739bf79
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:00007f8c5820e028 EFLAGS: 00000246 ORIG_RAX: 000000000000005d
RAX: ffffffffffffffda RBX: 00007f8c57615fa0 RCX: 00007f8c5739bf79
RDX: 000000000000ee01 RSI: 0000000000000000 RDI: 000000000000001a
RBP: 00007f8c574327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8c57616038 R14: 00007f8c57615fa0 R15: 00007fff6c8fd408
 </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:706
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 2d 9c 0e fe 48 8b 44 24 10 48 8b 38 e8 a0 b6 09 fd 90 <0f> 0b e8 d8 93 a4 fd 48 8b 7c 24 10 e8 8e b6 09 fd 90 0f 0b 66 66
RSP: 0018:ffffc900049cf9c8 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100a63fe8c RCX: 7d7bfb27d0573d00
RDX: ffffc90012523000 RSI: 0000000000003f6e RDI: 0000000000003f6f
RBP: ffffffffffffffff R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1cbd9ec R12: ffff8880531ff3f0
R13: ffff8880531ff460 R14: ffff8880531ff480 R15: 0000000000000000
FS:  00007f8c5820e6c0(0000) GS:ffff88812546a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e207ff8 CR3: 000000007c3e7000 CR4: 0000000000350ef0