gfs2: fsid=syz:syz.0: G: s:UN n:2/1241 f:n t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:302! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5770 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__gfs2_glock_put+0x369/0x3c0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 07 0f ff ff eb 25 e8 20 89 de fd e9 cb fe ff ff e8 16 89 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 00 89 de fd 31 f6 65 ff 0d 9f 2b 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000454f988 EFLAGS: 00010246 RAX: 6a68328a7de5d700 RBX: ffff88802a170fd8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520008a9f24 RBP: 1ffff1100396b015 R08: ffffc9000454f227 R09: 0000000000000000 R10: fffff520008a9ee0 R11: fffff520008a9e45 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88801cb58000 R15: ffff88802a1712c8 FS: 000055559426f500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c120000 CR3: 0000000060504000 CR4: 00000000003506e0 Call Trace: gfs2_glock_put_eventually fs/gfs2/super.c:1273 [inline] gfs2_evict_inode+0x68d/0x1350 fs/gfs2/super.c:1555 evict+0x4ca/0x8d0 fs/inode.c:705 gfs2_put_super+0x3d1/0x930 fs/gfs2/super.c:627 generic_shutdown_super+0x134/0x2b0 fs/super.c:693 kill_block_super+0x44/0x90 fs/super.c:1660 deactivate_locked_super+0x97/0x100 fs/super.c:481 cleanup_mnt+0x43b/0x4d0 fs/namespace.c:1259 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302 do_syscall_64+0x61/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fc38979bf17 Code: a2 c7 05 7c 96 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffda31d8ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fc38980471f RCX: 00007fc38979bf17 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda31d8b90 RBP: 00007ffda31d8b90 R08: 00007ffda31d9b90 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda31d9c20 R13: 00007fc38980471f R14: 0000000000029d91 R15: 00007ffda31d9c60 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x369/0x3c0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 07 0f ff ff eb 25 e8 20 89 de fd e9 cb fe ff ff e8 16 89 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 00 89 de fd 31 f6 65 ff 0d 9f 2b 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000454f988 EFLAGS: 00010246 RAX: 6a68328a7de5d700 RBX: ffff88802a170fd8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520008a9f24 RBP: 1ffff1100396b015 R08: ffffc9000454f227 R09: 0000000000000000 R10: fffff520008a9ee0 R11: fffff520008a9e45 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88801cb58000 R15: ffff88802a1712c8 FS: 000055559426f500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f572f1e1198 CR3: 0000000060504000 CR4: 00000000003506f0