drbd: add missing kref_get in handle_write_conflicts

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

CVE-2025-38708 · Microsoft / collected KEV context

cve-program · CVE-2025-38708

• https://git.kernel.org/stable/c/0336bfe9c237476bd7c45605a36ca79c2bca62e5
• https://git.kernel.org/stable/c/810cd546a29bfac90ed1328ea01d693d4bd11cb1
• https://git.kernel.org/stable/c/84ef8dd3238330d1795745ece83b19f0295751bf
• https://git.kernel.org/stable/c/57418de35420cedab035aa1da8a26c0499b7f575
• https://git.kernel.org/stable/c/9f53b2433ad248cd3342cc345f56f5c7904bd8c4
• https://git.kernel.org/stable/c/7d483ad300fc0a06f69b019dda8f74970714baf8
• https://git.kernel.org/stable/c/46e3763dcae0ffcf8fcfaff4fc10a90a92ffdd89
• https://git.kernel.org/stable/c/3a896498f6f577e57bf26aaa93b48c22b6d20c20
• https://git.kernel.org/stable/c/00c9c9628b49e368d140cfa61d7df9b8922ec2a8

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