gfs2: fsid=syz:syz.s: G: s:UN n:2/925 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 PTI CPU: 0 UID: 0 PID: 96 Comm: kworker/0:1H Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: gfs2-glock/syz:syz glock_work_func RIP: 0010:__gfs2_glock_put+0x384/0x3e0 fs/gfs2/glock.c:274 Code: 3f 48 89 de e8 7d 0f ff ff eb 26 e8 06 b9 c9 fd e9 30 fe ff ff e8 fc b8 c9 fd 31 ff 48 89 de ba 01 00 00 00 e8 2d df ff ff 90 <0f> 0b e8 e5 b8 c9 fd 31 f6 65 ff 0d 3c 3a cb 0e 40 0f 94 c5 40 0f RSP: 0000:ffffc90002607a28 EFLAGS: 00010246 RAX: 8f44c6ddcb740800 RBX: ffff888068434548 RCX: ffff88801e708000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc900026072e7 R09: 1ffff920004c0e5c R10: dffffc0000000000 R11: fffff520004c0e5d R12: dffffc0000000000 R13: 1ffff110092fd015 R14: ffff8880497e8000 R15: ffff888068434838 FS: 0000000000000000(0000) GS:ffff8881259ff000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f84b962b000 CR3: 000000004b876000 CR4: 00000000003526f0 Call Trace: process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x47c/0x820 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+0x384/0x3e0 fs/gfs2/glock.c:274 Code: 3f 48 89 de e8 7d 0f ff ff eb 26 e8 06 b9 c9 fd e9 30 fe ff ff e8 fc b8 c9 fd 31 ff 48 89 de ba 01 00 00 00 e8 2d df ff ff 90 <0f> 0b e8 e5 b8 c9 fd 31 f6 65 ff 0d 3c 3a cb 0e 40 0f 94 c5 40 0f RSP: 0000:ffffc90002607a28 EFLAGS: 00010246 RAX: 8f44c6ddcb740800 RBX: ffff888068434548 RCX: ffff88801e708000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc900026072e7 R09: 1ffff920004c0e5c R10: dffffc0000000000 R11: fffff520004c0e5d R12: dffffc0000000000 R13: 1ffff110092fd015 R14: ffff8880497e8000 R15: ffff888068434838 FS: 0000000000000000(0000) GS:ffff8881259ff000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556f3f8dc950 CR3: 000000000e138000 CR4: 00000000003526f0