gfs2: fsid=syz:syz.0: G: s:UN n:2/923 f:a t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:274! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 92 Comm: kworker/1:1H Not tainted 6.16.0-rc5-syzkaller-00025-gd006330be3f7 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: gfs2-glock/syz:syz glock_work_func RIP: 0010:__gfs2_glock_put+0x466/0x4f0 fs/gfs2/glock.c:274 Code: 90 90 e9 07 fe ff ff e8 18 ac b8 fd 90 0f 0b 90 e9 bb fd ff ff e8 0a ac b8 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 f3 ab b8 fd 90 0f 0b 90 e9 58 fe ff ff e8 f5 91 1e fe e9 RSP: 0018:ffffc9000210fbf0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888051cc8fd8 RCX: fffff52000421f2f RDX: ffff88801f38bc00 RSI: ffffffff84031084 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880347c0000 R13: ffff8880347c00a8 R14: ffff888051cc8ff8 R15: ffffc9000210fd10 FS: 0000000000000000(0000) GS:ffff88812481a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f9b781ab8 CR3: 000000005748e000 CR4: 0000000000350ef0 Call Trace: glock_work_func+0x396/0x4d0 fs/gfs2/glock.c:1108 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402 kthread+0x3c5/0x780 kernel/kthread.c:464 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x466/0x4f0 fs/gfs2/glock.c:274 Code: 90 90 e9 07 fe ff ff e8 18 ac b8 fd 90 0f 0b 90 e9 bb fd ff ff e8 0a ac b8 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 f3 ab b8 fd 90 0f 0b 90 e9 58 fe ff ff e8 f5 91 1e fe e9 RSP: 0018:ffffc9000210fbf0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888051cc8fd8 RCX: fffff52000421f2f RDX: ffff88801f38bc00 RSI: ffffffff84031084 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880347c0000 R13: ffff8880347c00a8 R14: ffff888051cc8ff8 R15: ffffc9000210fd10 FS: 0000000000000000(0000) GS:ffff88812481a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f9b781ab8 CR3: 000000005748e000 CR4: 0000000000350ef0