gfs2: Fix unlikely race in gdlm_put_lock

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2025-40242 · Microsoft / collected KEV context

cve-program · CVE-2025-40242

• https://git.kernel.org/stable/c/5fdc1474e678eea1700aa266c0b7c2c96f81dd0d
• https://git.kernel.org/stable/c/4913592a3358f6ec366b8346b733d5e2360b08e1
• https://git.kernel.org/stable/c/279bde3bbb0ac0bad5c729dfa85983d75a5d7641
• https://git.kernel.org/stable/c/64c61b4ac645222fa7b724cef616c1f862a72a40
• https://git.kernel.org/stable/c/28c4d9bc0708956c1a736a9e49fee71b65deee81

No related operational record is retained in the current change model.