RHSA-2026:25534 - Security Advisory

Topic

An update for kernel is now available for NVIDIA for RHEL 10.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the NVIDIA for RHEL 10 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for ARM 64 10 aarch64

Fixes

• BZ - 2464351 - CVE-2026-43037 kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err()
• VOYAGER-1032 - CVE-2026-43037 kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() [voyager-26.01.z]

CVEs

• CVE-2026-43037

References

• https://access.redhat.com/security/updates/classification/#critical