gfs2: fsid=syz:syz.0: G: s:UN n:2/103c 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: 1 UID: 0 PID: 55 Comm: kworker/1:1H 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 e6 8e c9 fd e9 30 fe ff ff e8 dc 8e c9 fd 31 ff 48 89 de ba 01 00 00 00 e8 2d df ff ff 90 <0f> 0b e8 c5 8e c9 fd 31 f6 65 ff 0d 7c 67 cb 0e 40 0f 94 c5 40 0f RSP: 0018:ffffc9000130fa48 EFLAGS: 00010246 RAX: 75e4676955273700 RBX: ffff88807abb4fd8 RCX: ffff888022ee1e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc9000130f307 R09: 1ffff92000261e60 R10: dffffc0000000000 R11: fffff52000261e61 R12: dffffc0000000000 R13: 1ffff1100a34c815 R14: ffff888051a64000 R15: ffff88807abb52c8 FS: 0000000000000000(0000) GS:ffff888125b08000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbf249d4f98 CR3: 00000000349d2000 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+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 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 e6 8e c9 fd e9 30 fe ff ff e8 dc 8e c9 fd 31 ff 48 89 de ba 01 00 00 00 e8 2d df ff ff 90 <0f> 0b e8 c5 8e c9 fd 31 f6 65 ff 0d 7c 67 cb 0e 40 0f 94 c5 40 0f RSP: 0018:ffffc9000130fa48 EFLAGS: 00010246 RAX: 75e4676955273700 RBX: ffff88807abb4fd8 RCX: ffff888022ee1e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc9000130f307 R09: 1ffff92000261e60 R10: dffffc0000000000 R11: fffff52000261e61 R12: dffffc0000000000 R13: 1ffff1100a34c815 R14: ffff888051a64000 R15: ffff88807abb52c8 FS: 0000000000000000(0000) GS:ffff888125b08000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3301bff8 CR3: 000000007c344000 CR4: 00000000003526f0