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:274! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 55 Comm: kworker/1:1H Not tainted 6.16.0-rc6-syzkaller-00002-g155a3c003e55 #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 08 9a b8 fd 90 0f 0b 90 e9 bb fd ff ff e8 fa 99 b8 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 e3 99 b8 fd 90 0f 0b 90 e9 58 fe ff ff e8 35 7e 1e fe e9 RSP: 0018:ffffc9000130fbf0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88807cfa0000 RCX: fffff52000261f2f RDX: ffff888022e95a00 RSI: ffffffff84031e64 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804abb8000 R13: ffff88804abb80a8 R14: ffff88807cfa0020 R15: ffffc9000130fd10 FS: 0000000000000000(0000) GS:ffff88812481a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5a7cd71400 CR3: 00000000290ef000 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 08 9a b8 fd 90 0f 0b 90 e9 bb fd ff ff e8 fa 99 b8 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 e3 99 b8 fd 90 0f 0b 90 e9 58 fe ff ff e8 35 7e 1e fe e9 RSP: 0018:ffffc9000130fbf0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88807cfa0000 RCX: fffff52000261f2f RDX: ffff888022e95a00 RSI: ffffffff84031e64 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804abb8000 R13: ffff88804abb80a8 R14: ffff88807cfa0020 R15: ffffc9000130fd10 FS: 0000000000000000(0000) GS:ffff88812481a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5a7cd71400 CR3: 00000000290ef000 CR4: 0000000000350ef0