RHSA-2025:12311 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: ipv6: mcast: extend RCU protection in igmp6_send() (CVE-2025-21759)
• kernel: media: uvcvideo: Fix double free in error path (CVE-2024-57980)
• kernel: wifi: iwlwifi: limit printed string from FW file (CVE-2025-21905)
• kernel: ext4: avoid journaling sb update on error if journal is destroying (CVE-2025-22113)
• kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry (CVE-2025-37958)
• kernel: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice (CVE-2025-38001)
• kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (CVE-2025-38052)

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.

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 x86_64 - Update Services for SAP Solutions 9.2 x86_64

Fixes

• BZ - 2348596 - CVE-2025-21759 kernel: ipv6: mcast: extend RCU protection in igmp6_send()
• BZ - 2348599 - CVE-2024-57980 kernel: media: uvcvideo: Fix double free in error path
• BZ - 2356613 - CVE-2025-21905 kernel: wifi: iwlwifi: limit printed string from FW file
• BZ - 2360212 - CVE-2025-22113 kernel: ext4: avoid journaling sb update on error if journal is destroying
• BZ - 2367572 - CVE-2025-37958 kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry
• BZ - 2370776 - CVE-2025-38001 kernel: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice
• BZ - 2373380 - CVE-2025-38052 kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done

CVEs

• CVE-2024-57980
• CVE-2025-21759
• CVE-2025-21905
• CVE-2025-22113
• CVE-2025-37958
• CVE-2025-38001
• CVE-2025-38052

References

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