gfs2: fsid=syz:syz.0: G: s:UN n:2/1244 f: t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:302! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1087 Comm: kworker/0:1H Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: glock_workqueue glock_work_func RIP: 0010:__gfs2_glock_put+0x369/0x3c0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 07 0f ff ff eb 25 e8 20 89 de fd e9 cb fe ff ff e8 16 89 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 00 89 de fd 31 f6 65 ff 0d 9f 2b 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000481fb88 EFLAGS: 00010246 RAX: a8bbda1b32988200 RBX: ffff8880756de4f8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff52000903f64 RBP: 1ffff1100efc6815 R08: ffffc9000481f427 R09: 0000000000000000 R10: fffff52000903f20 R11: fffff52000903e85 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888077e34000 R15: ffff8880756de7e8 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b23ff8 CR3: 00000000612e1000 CR4: 00000000003506f0 Call Trace: process_one_work kernel/workqueue.c:2634 [inline] process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2711 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x369/0x3c0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 07 0f ff ff eb 25 e8 20 89 de fd e9 cb fe ff ff e8 16 89 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 00 89 de fd 31 f6 65 ff 0d 9f 2b 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000481fb88 EFLAGS: 00010246 RAX: a8bbda1b32988200 RBX: ffff8880756de4f8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff52000903f64 RBP: 1ffff1100efc6815 R08: ffffc9000481f427 R09: 0000000000000000 R10: fffff52000903f20 R11: fffff52000903e85 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888077e34000 R15: ffff8880756de7e8 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b23ff8 CR3: 00000000612e1000 CR4: 00000000003506f0