gfs2: fsid=syz:syz.0: found 1 quota changes 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: 10065 Comm: syz.4.820 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 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 5d c6 0c fe 48 8b 44 24 10 48 8b 38 e8 d0 f3 07 fd 90 <0f> 0b e8 78 5d a3 fd 48 8b 7c 24 10 e8 be f3 07 fd 90 0f 0b 66 66 RSP: 0018:ffffc900056af8b0 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff1100b532462 RCX: 14f78179b850b300 RDX: ffffc9000e473000 RSI: 0000000000002ffe RDI: 0000000000002fff RBP: ffffffffffffffff R08: ffffc900056af627 R09: 1ffff92000ad5ec4 R10: dffffc0000000000 R11: fffff52000ad5ec5 R12: ffff88805a9922a0 R13: ffff88805a992310 R14: ffff88805a992330 R15: 0000000000000000 FS: 00007f682c4146c0(0000) GS:ffff88812535c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2fb63f6d58 CR3: 0000000076e06000 CR4: 00000000003526f0 Call Trace: gfs2_quota_change+0x391/0x800 fs/gfs2/quota.c:1305 gfs2_free_di+0x2db/0x3f0 fs/gfs2/rgrp.c:2592 gfs2_dinode_dealloc+0x312/0x3f0 fs/gfs2/inode.c:509 evict_unlinked_inode fs/gfs2/super.c:1328 [inline] gfs2_evict_inode+0x10bc/0x12d0 fs/gfs2/super.c:1463 evict+0x61e/0xb10 fs/inode.c:841 d_delete_notify include/linux/fsnotify.h:377 [inline] vfs_rmdir+0x42a/0x6e0 fs/namei.c:5379 filename_rmdir+0x292/0x520 fs/namei.c:5421 __do_sys_rmdir fs/namei.c:5444 [inline] __se_sys_rmdir+0x2e/0x140 fs/namei.c:5441 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f682b59c819 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:00007f682c414028 EFLAGS: 00000246 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 00007f682b815fa0 RCX: 00007f682b59c819 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000080 RBP: 00007f682b632c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f682b816038 R14: 00007f682b815fa0 R15: 00007ffd96e3bdb8 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 5d c6 0c fe 48 8b 44 24 10 48 8b 38 e8 d0 f3 07 fd 90 <0f> 0b e8 78 5d a3 fd 48 8b 7c 24 10 e8 be f3 07 fd 90 0f 0b 66 66 RSP: 0018:ffffc900056af8b0 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff1100b532462 RCX: 14f78179b850b300 RDX: ffffc9000e473000 RSI: 0000000000002ffe RDI: 0000000000002fff RBP: ffffffffffffffff R08: ffffc900056af627 R09: 1ffff92000ad5ec4 R10: dffffc0000000000 R11: fffff52000ad5ec5 R12: ffff88805a9922a0 R13: ffff88805a992310 R14: ffff88805a992330 R15: 0000000000000000 FS: 00007f682c4146c0(0000) GS:ffff88812535c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2fb63f6d58 CR3: 0000000076e06000 CR4: 00000000003526f0