CVE-2025-40170 Affecting perf package, versions <0:4.18.0-553.104.1.el8_10


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.03% (10th percentile)

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  • Snyk IDSNYK-ALMALINUX8-PERF-15253233
  • published10 Feb 2026
  • disclosed9 Feb 2026

Introduced: 9 Feb 2026

CVE-2025-40170  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 perf to version 0:4.18.0-553.104.1.el8_10 or higher.
This issue was patched in ALSA-2026:2264.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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

net: use dst_dev_rcu() in sk_setup_caps()

Use RCU to protect accesses to dst->dev from sk_setup_caps() and sk_dst_gso_max_size().

Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(), and ip_dst_mtu_maybe_forward().

ip4_dst_hoplimit() can use dst_dev_net_rcu().

CVSS Base Scores

version 3.1