Use After Free Affecting rv package, versions <0:6.12.0-124.31.1.el10_1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-RHEL10-RV-15175143
  • published3 Feb 2026
  • disclosed12 Nov 2025

Introduced: 12 Nov 2025

CVE-2025-40170  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:10 rv to version 0:6.12.0-124.31.1.el10_1 or higher.
This issue was patched in RHSA-2026:1690.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rv package and not the rv package as distributed by RHEL. See How to fix? for RHEL:10 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