AUGUST 4, 2026
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Case File

CVE-2025-39841

CRITICAL · CVSS 9.8 EPSS 0.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-09-19 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Linux.

CVE
CVE-2025-39841
Severity
CRITICAL
CVSS
9.8
EPSS
0.44%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix buffer free/clear order in deferred receive path Fix a use-after-free window by correcting the buffer release sequence in the deferred receive path. The code freed the RQ buffer first and only then cleared the context pointer under the lock. Concurrent paths (e.g., ABTS and the repost path) also inspect and release the same pointer under the lock, so the old order could lead to double-free/UAF. Note that the repost path already uses the correct pattern: detach the pointer under the lock, then free it after dropping the lock. The deferred path should do the same.

Related CVEs

Other vulnerabilities affecting the same vendor(s)