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 PTI CPU: 1 UID: 0 PID: 6166 Comm: syz.2.25 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 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 6d ac 26 fe 48 8b 44 24 10 48 8b 38 e8 20 d9 2c fd 90 <0f> 0b e8 48 2a c2 fd 48 8b 7c 24 10 e8 0e d9 2c fd 90 0f 0b 66 66 RSP: 0018:ffffc900033778f0 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff1100ed88862 RCX: d88621e8fb644800 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffffffffffff R08: ffffc90003377607 R09: 1ffff9200066eec0 R10: dffffc0000000000 R11: fffff5200066eec1 R12: ffff888076c442a0 R13: ffff888076c44310 R14: ffff888076c44330 R15: 0000000000000000 FS: 00007f7525ee06c0(0000) GS:ffff888125ae8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6e66d41000 CR3: 0000000027146000 CR4: 00000000003526f0 Call Trace: gfs2_quota_change+0x394/0x800 fs/gfs2/quota.c:1304 gfs2_free_di+0x2db/0x3f0 fs/gfs2/rgrp.c:2592 gfs2_dinode_dealloc+0x30d/0x3e0 fs/gfs2/inode.c:495 evict_unlinked_inode fs/gfs2/super.c:1330 [inline] gfs2_evict_inode+0xe0b/0x1000 fs/gfs2/super.c:1427 evict+0x504/0x9c0 fs/inode.c:810 d_delete_notify include/linux/fsnotify.h:377 [inline] vfs_rmdir+0x3ec/0x520 fs/namei.c:4482 do_rmdir+0x25f/0x550 fs/namei.c:4524 __do_sys_rmdir fs/namei.c:4543 [inline] __se_sys_rmdir fs/namei.c:4541 [inline] __x64_sys_rmdir+0x47/0x50 fs/namei.c:4541 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7524f8eba9 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:00007f7525ee0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 00007f75251d5fa0 RCX: 00007f7524f8eba9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000000c0 RBP: 00007f7525011e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f75251d6038 R14: 00007f75251d5fa0 R15: 00007ffc3503a928 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 6d ac 26 fe 48 8b 44 24 10 48 8b 38 e8 20 d9 2c fd 90 <0f> 0b e8 48 2a c2 fd 48 8b 7c 24 10 e8 0e d9 2c fd 90 0f 0b 66 66 RSP: 0018:ffffc900033778f0 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff1100ed88862 RCX: d88621e8fb644800 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffffffffffff R08: ffffc90003377607 R09: 1ffff9200066eec0 R10: dffffc0000000000 R11: fffff5200066eec1 R12: ffff888076c442a0 R13: ffff888076c44310 R14: ffff888076c44330 R15: 0000000000000000 FS: 00007f7525ee06c0(0000) GS:ffff888125ae8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6e66d41000 CR3: 0000000027146000 CR4: 00000000003526f0