gfs2: fsid=syz:syz.0: G: s:UN n:2/208a 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:246! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 25 Comm: kworker/1:0H Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: gfs2-glock/syz:syz glock_work_func RIP: 0010:__gfs2_glock_put+0x31b/0x370 fs/gfs2/glock.c:246 Code: 3f 48 89 de e8 26 12 ff ff eb 26 e8 cf e2 c0 fd e9 5a fe ff ff e8 c5 e2 c0 fd 31 ff 48 89 de ba 01 00 00 00 e8 96 e1 ff ff 90 <0f> 0b e8 ae e2 c0 fd 31 f6 65 ff 0d 75 da 9e 0e 40 0f 94 c5 40 0f RSP: 0018:ffffc900001f7a48 EFLAGS: 00010246 RAX: 9e28d45834113600 RBX: ffff888027b12a40 RCX: ffff88801da81e80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900001f7c38 R08: ffffc900001f7307 R09: 1ffff9200003ee60 R10: dffffc0000000000 R11: fffff5200003ee61 R12: dffffc0000000000 R13: 0000000000000003 R14: ffff888034358000 R15: ffff888027b12d30 FS: 0000000000000000(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5abc7156c0 CR3: 0000000033b84000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000006800 DR2: 0000000000009951 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: process_one_work+0x93a/0x15a0 kernel/workqueue.c:3279 process_scheduled_works kernel/workqueue.c:3362 [inline] worker_thread+0x9b0/0xee0 kernel/workqueue.c:3443 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x31b/0x370 fs/gfs2/glock.c:246 Code: 3f 48 89 de e8 26 12 ff ff eb 26 e8 cf e2 c0 fd e9 5a fe ff ff e8 c5 e2 c0 fd 31 ff 48 89 de ba 01 00 00 00 e8 96 e1 ff ff 90 <0f> 0b e8 ae e2 c0 fd 31 f6 65 ff 0d 75 da 9e 0e 40 0f 94 c5 40 0f RSP: 0018:ffffc900001f7a48 EFLAGS: 00010246 RAX: 9e28d45834113600 RBX: ffff888027b12a40 RCX: ffff88801da81e80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900001f7c38 R08: ffffc900001f7307 R09: 1ffff9200003ee60 R10: dffffc0000000000 R11: fffff5200003ee61 R12: dffffc0000000000 R13: 0000000000000003 R14: ffff888034358000 R15: ffff888027b12d30 FS: 0000000000000000(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5abc7156c0 CR3: 0000000033b84000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000006800 DR2: 0000000000009951 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400