Use After Free Affecting kernel-zfcpdump-devel package, versions <0:5.14.0-687.64.1.el9_8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.69% (51st percentile)

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  • Snyk IDSNYK-ROCKY9-KERNELZFCPDUMPDEVEL-22188420
  • published4 Nov 2026
  • disclosed25 Jul 2026

Introduced: 25 Jul 2026

CVE-2026-64303  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 kernel-zfcpdump-devel to version 0:5.14.0-687.64.1.el9_8 or higher.
This issue was patched in RLSA-2026:93412.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-devel package and not the kernel-zfcpdump-devel package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

spi: fsl-lpspi: terminate the RX channel on TX prepare failure path

When dmaengine_prep_slave_sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX channel running. Since the RX channel was already submitted and issued prior to preparing the TX descriptor, returning -EINVAL causes the SPI core to unmap the DMA buffers while the RX DMA engine continues writing to them, leading to potential memory corruption or use-after-free.

Terminate the RX channel before returning on the TX prepare failure path.

CVSS Base Scores

version 3.1