gfs2: fsid=syz:syz.s: G: s:UN n:2/924 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:289! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4271 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+0x408/0x450 fs/gfs2/glock.c:289 Code: 75 36 e8 cb 99 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 b7 99 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 a1 99 ee fd 0f 0b e9 0f ff ff ff e8 95 99 ee fd e8 d8 ca RSP: 0018:ffffc90003ef79a8 EFLAGS: 00010246 RAX: e4d1ee40267a6c00 RBX: ffff88807cd164f8 RCX: 0000000000000000 RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff520007def28 RBP: 1ffff1100f86c815 R08: ffffc90003ef7247 R09: fffff520007deee4 R10: dffffc0000000000 R11: fffff520007dee49 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88807c364000 R15: ffff88807cd167e8 FS: 00005555619e3500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fca6094da08 CR3: 000000005bb92000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_put_eventually fs/gfs2/super.c:1255 [inline] gfs2_evict_inode+0xeb7/0x11d0 fs/gfs2/super.c:1532 evict+0x4c9/0x8d0 fs/inode.c:705 gfs2_put_super+0x412/0x8c0 fs/gfs2/super.c:616 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7c/0xe0 fs/super.c:1470 deactivate_locked_super+0x93/0xf0 fs/super.c:332 cleanup_mnt+0x42c/0x4b0 fs/namespace.c:1191 task_work_run+0x1d0/0x260 kernel/task_work.c:203 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:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff62039bf17 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:00007fff059ccb18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007ff62040471f RCX: 00007ff62039bf17 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff059ccbd0 RBP: 00007fff059ccbd0 R08: 00007fff059cdbd0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff059cdc60 R13: 00007ff62040471f R14: 0000000000030522 R15: 00007fff059cdca0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x408/0x450 fs/gfs2/glock.c:289 Code: 75 36 e8 cb 99 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 b7 99 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 a1 99 ee fd 0f 0b e9 0f ff ff ff e8 95 99 ee fd e8 d8 ca RSP: 0018:ffffc90003ef79a8 EFLAGS: 00010246 RAX: e4d1ee40267a6c00 RBX: ffff88807cd164f8 RCX: 0000000000000000 RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff520007def28 RBP: 1ffff1100f86c815 R08: ffffc90003ef7247 R09: fffff520007deee4 R10: dffffc0000000000 R11: fffff520007dee49 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88807c364000 R15: ffff88807cd167e8 FS: 00005555619e3500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fea3239b000 CR3: 000000005bb92000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400