gfs2: fsid=syz:syz.0: G: s:UN n:2/208c 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: 1 PID: 17185 Comm: kworker/1:1H Not tainted 6.6.100-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: glock_workqueue glock_work_func RIP: 0010:__gfs2_glock_put+0x355/0x3b0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 db 15 ff ff eb 25 e8 64 76 e6 fd e9 d1 fe ff ff e8 5a 76 e6 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 44 76 e6 fd 31 f6 65 ff 0d c3 9a 64 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc900037f7b88 EFLAGS: 00010246 RAX: f748183a9bcc1000 RBX: ffff888058d59520 RCX: ffff888022831e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc900037f7427 R09: 1ffff920006fee84 R10: dffffc0000000000 R11: fffff520006fee85 R12: dffffc0000000000 R13: 1ffff11005c10815 R14: ffff88802e084000 R15: ffff888058d59810 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa3d4405000 CR3: 000000005cdc2000 CR4: 00000000003506e0 Call Trace: process_one_work kernel/workqueue.c:2634 [inline] process_scheduled_works+0xa45/0x15b0 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+0x355/0x3b0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 db 15 ff ff eb 25 e8 64 76 e6 fd e9 d1 fe ff ff e8 5a 76 e6 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 44 76 e6 fd 31 f6 65 ff 0d c3 9a 64 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc900037f7b88 EFLAGS: 00010246 RAX: f748183a9bcc1000 RBX: ffff888058d59520 RCX: ffff888022831e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc900037f7427 R09: 1ffff920006fee84 R10: dffffc0000000000 R11: fffff520006fee85 R12: dffffc0000000000 R13: 1ffff11005c10815 R14: ffff88802e084000 R15: ffff888058d59810 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa3d4405000 CR3: 0000000074dab000 CR4: 00000000003506e0