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 NOPTI CPU: 0 UID: 0 PID: 28196 Comm: syz.9.4760 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 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 dd d9 17 fe 48 8b 44 24 10 48 8b 38 e8 f0 a9 15 fd 90 <0f> 0b e8 08 8a af fd 48 8b 7c 24 10 e8 de a9 15 fd 90 0f 0b 66 66 RSP: 0018:ffffc9000bf77328 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff11009905b34 RCX: 006b8276dfb38400 RDX: ffffc90013b74000 RSI: 0000000000001051 RDI: 0000000000001052 RBP: 0000000000000001 R08: ffffc9000bf770a7 R09: 1ffff920017eee14 R10: dffffc0000000000 R11: fffff520017eee15 R12: ffff88804c82d930 R13: ffff88804c82d9a0 R14: ffff88804c82d9c0 R15: 0000000000000000 FS: 00007f997e6e66c0(0000) GS:ffff8881256f3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f997344c000 CR3: 000000008fbd6000 CR4: 0000000000350ef0 Call Trace: gfs2_quota_change+0x391/0x800 fs/gfs2/quota.c:1304 gfs2_alloc_blocks+0x18ca/0x2090 fs/gfs2/rgrp.c:2494 alloc_dinode+0x252/0x560 fs/gfs2/inode.c:436 gfs2_create_inode+0xc4a/0x1630 fs/gfs2/inode.c:822 gfs2_atomic_open+0x116/0x200 fs/gfs2/inode.c:1402 atomic_open fs/namei.c:4304 [inline] lookup_open fs/namei.c:4415 [inline] open_last_lookups fs/namei.c:4549 [inline] path_openat+0x121a/0x3e20 fs/namei.c:4793 do_filp_open+0x22d/0x490 fs/namei.c:4823 do_sys_openat2+0x12f/0x220 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_open fs/open.c:1444 [inline] __se_sys_open fs/open.c:1440 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1440 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f997d79aeb9 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:00007f997e6e6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f997da15fa0 RCX: 00007f997d79aeb9 RDX: 1df2a23c5997fa5f RSI: 0000000000084242 RDI: 0000200000000580 RBP: 00007f997d808c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f997da16038 R14: 00007f997da15fa0 R15: 00007ffdd29cbcb8 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 dd d9 17 fe 48 8b 44 24 10 48 8b 38 e8 f0 a9 15 fd 90 <0f> 0b e8 08 8a af fd 48 8b 7c 24 10 e8 de a9 15 fd 90 0f 0b 66 66 RSP: 0018:ffffc9000bf77328 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff11009905b34 RCX: 006b8276dfb38400 RDX: ffffc90013b74000 RSI: 0000000000001051 RDI: 0000000000001052 RBP: 0000000000000001 R08: ffffc9000bf770a7 R09: 1ffff920017eee14 R10: dffffc0000000000 R11: fffff520017eee15 R12: ffff88804c82d930 R13: ffff88804c82d9a0 R14: ffff88804c82d9c0 R15: 0000000000000000 FS: 00007f997e6e66c0(0000) GS:ffff8881256f3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f997344c000 CR3: 000000008fbd6000 CR4: 0000000000350ef0