gfs2: fsid=syz:syz.0: G: s:UN n:2/13 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: 0 PID: 6209 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 50 83 de fd e9 cb fe ff ff e8 46 83 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 30 83 de fd 31 f6 65 ff 0d 3f 24 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc90004d4f8c8 EFLAGS: 00010246 RAX: 727480dd305f6800 RBX: ffff8880580f6a40 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520009a9f0c RBP: 1ffff1100609b815 R08: ffffc90004d4f167 R09: 0000000000000000 R10: fffff520009a9ec8 R11: fffff520009a9e2d R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880304dc000 R15: ffff8880580f6d30 FS: 0000555584c93500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0c0b21e000 CR3: 000000005d308000 CR4: 00000000003506f0 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_jindex_free+0x3a5/0x450 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+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: 0033:0x7f3f9419c117 Code: a2 c7 05 7c 94 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:00007ffe3dc18c18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f3f9420471f RCX: 00007f3f9419c117 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3dc18cd0 RBP: 00007ffe3dc18cd0 R08: 00007ffe3dc19cd0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3dc19d60 R13: 00007f3f9420471f R14: 000000000004dd0c R15: 00007ffe3dc19da0 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 50 83 de fd e9 cb fe ff ff e8 46 83 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 30 83 de fd 31 f6 65 ff 0d 3f 24 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc90004d4f8c8 EFLAGS: 00010246 RAX: 727480dd305f6800 RBX: ffff8880580f6a40 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520009a9f0c RBP: 1ffff1100609b815 R08: ffffc90004d4f167 R09: 0000000000000000 R10: fffff520009a9ec8 R11: fffff520009a9e2d R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880304dc000 R15: ffff8880580f6d30 FS: 0000555584c93500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0a36fde2f8 CR3: 000000005d308000 CR4: 00000000003506e0