CVE-2026-93170 Affecting kernel-livepatch-6_4_0-150700_53_90-default package, versions <1-150700.15.3.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.18% (7th percentile)

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  • Snyk IDSNYK-SLES157-KERNELLIVEPATCH6401507005390DEFAULT-22239979
  • published5 Nov 2026
  • disclosed3 Nov 2026

Introduced: 3 Nov 2026

NewCVE-2026-93170  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-livepatch-6_4_0-150700_53_90-default to version 1-150700.15.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150700_53_90-default package and not the kernel-livepatch-6_4_0-150700_53_90-default package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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

dmaengine: xilinx_dma: Fix channel idle state management in AXIDMA and MCDMA interrupt handlers

Fix a race condition in AXIDMA and MCDMA irq handlers where the channel could be incorrectly marked as idle and attempt spurious transfers when descriptors are still being processed.

The issue occurs when:

  1. Multiple descriptors are queued and active.
  2. An interrupt fires after completing some descriptors.
  3. xilinx_dma_complete_descriptor() moves completed descriptors to done_list.
  4. Channel is marked idle and start_transfer() is called even though active_list still contains unprocessed descriptors.
  5. This leads to premature transfer attempts and potential descriptor corruption or missed completions.

Only mark the channel as idle and start new transfers when the active list is actually empty, ensuring proper channel state management and avoiding spurious transfer attempts.

CVSS Base Scores

version 3.1