gfs2: fsid=syz:syz.0: G: s:UN n:2/184c 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: 5795 Comm: syz-executor Not tainted 6.6.97-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 44 3a e5 fd e9 d1 fe ff ff e8 3a 3a e5 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 24 3a e5 fd 31 f6 65 ff 0d b3 5d 63 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000462f948 EFLAGS: 00010246 RAX: 51d7b1285d8b1c00 RBX: ffff88805f759fb0 RCX: ffff88807d631e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc9000462f1e7 R09: 1ffff920008c5e3c R10: dffffc0000000000 R11: fffff520008c5e3d R12: dffffc0000000000 R13: 1ffff1100f4d0815 R14: ffff88807a684000 R15: ffff88805f75a2a0 FS: 0000555591636500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd030f71d60 CR3: 000000005d02d000 CR4: 00000000003506e0 Call Trace: 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 __dentry_kill+0x431/0x650 fs/dcache.c:611 dentry_kill+0xb8/0x290 fs/dcache.c:-1 dput+0xfe/0x1e0 fs/dcache.c:918 shrink_dcache_for_umount+0x69/0x110 fs/dcache.c:1703 generic_shutdown_super+0x67/0x2b0 fs/super.c:665 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: 0033:0x7ffab9f8fc57 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:00007ffcbd22c758 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007ffaba010925 RCX: 00007ffab9f8fc57 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcbd22c810 RBP: 00007ffcbd22c810 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcbd22d8a0 R13: 00007ffaba010925 R14: 00000000000cc309 R15: 00007ffcbd22d8e0 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 44 3a e5 fd e9 d1 fe ff ff e8 3a 3a e5 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 24 3a e5 fd 31 f6 65 ff 0d b3 5d 63 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000462f948 EFLAGS: 00010246 RAX: 51d7b1285d8b1c00 RBX: ffff88805f759fb0 RCX: ffff88807d631e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc9000462f1e7 R09: 1ffff920008c5e3c R10: dffffc0000000000 R11: fffff520008c5e3d R12: dffffc0000000000 R13: 1ffff1100f4d0815 R14: ffff88807a684000 R15: ffff88805f75a2a0 FS: 0000555591636500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdec0d212c0 CR3: 000000005d02d000 CR4: 00000000003506e0