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gfs2: fsid=syz:syz.s: G:  s:UN n:2/13 f:n t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1
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kernel BUG at fs/gfs2/glock.c:302!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5785 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__gfs2_glock_put+0x355/0x3b0 fs/gfs2/glock.c:302
Code: 8b 3f 48 89 de e8 db 15 ff ff eb 25 e8 94 01 e6 fd e9 d1 fe ff ff e8 8a 01 e6 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 74 01 e6 fd 31 f6 65 ff 0d d3 2b 64 7c 40 0f 94 c5 40 0f
RSP: 0018:ffffc9000465f8e8 EFLAGS: 00010246
RAX: 20ea94a4eab48300 RBX: ffff88802d2e34d0 RCX: ffff88802f619e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc9000465f187 R09: 1ffff920008cbe30
R10: dffffc0000000000 R11: fffff520008cbe31 R12: dffffc0000000000
R13: 1ffff1100f2b1015 R14: ffff888079588000 R15: ffff88802d2e37c0
FS:  000055558a876500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f96698f56c0 CR3: 000000006343e000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 gfs2_glock_put_eventually fs/gfs2/super.c:1275 [inline]
 gfs2_evict_inode+0x65a/0x1220 fs/gfs2/super.c:1557
 evict+0x486/0x870 fs/inode.c:705
 gfs2_jindex_free+0x39d/0x440 fs/gfs2/super.c:79
 gfs2_put_super+0x8b3/0x930 fs/gfs2/super.c:648
 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+0x429/0x4c0 fs/namespace.c:1250
 task_work_run+0x1ce/0x250 kernel/task_work.c:239
 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+0xb1/0x140 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+0x61/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9d4b38ff17
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe30828628 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f9d4b411c05 RCX: 00007f9d4b38ff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe308286e0
RBP: 00007ffe308286e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe30829770
R13: 00007f9d4b411c05 R14: 00000000000fb2cf R15: 00007ffe308297b0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__gfs2_glock_put+0x355/0x3b0 fs/gfs2/glock.c:302
Code: 8b 3f 48 89 de e8 db 15 ff ff eb 25 e8 94 01 e6 fd e9 d1 fe ff ff e8 8a 01 e6 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 74 01 e6 fd 31 f6 65 ff 0d d3 2b 64 7c 40 0f 94 c5 40 0f
RSP: 0018:ffffc9000465f8e8 EFLAGS: 00010246
RAX: 20ea94a4eab48300 RBX: ffff88802d2e34d0 RCX: ffff88802f619e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc9000465f187 R09: 1ffff920008cbe30
R10: dffffc0000000000 R11: fffff520008cbe31 R12: dffffc0000000000
R13: 1ffff1100f2b1015 R14: ffff888079588000 R15: ffff88802d2e37c0
FS:  000055558a876500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f96698f56c0 CR3: 000000006343e000 CR4: 00000000003506f0