RHSA-2025:17123 - 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 Moderate. 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: usb: dwc3: gadget: check that event count does not exceed event buffer length (CVE-2025-37810)
• kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200)
• kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
• kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)
• kernel: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (CVE-2025-38472)
• kernel: smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527)

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 - 2365028 - CVE-2025-37810 kernel: usb: dwc3: gadget: check that event count does not exceed event buffer length
• BZ - 2376392 - CVE-2025-38200 kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw
• BZ - 2383513 - CVE-2025-38461 kernel: vsock: Fix transport_* TOCTOU
• BZ - 2383519 - CVE-2025-38449 kernel: drm/gem: Acquire references on GEM handles for framebuffers
• BZ - 2383916 - CVE-2025-38472 kernel: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry
• BZ - 2388928 - CVE-2025-38527 kernel: smb: client: fix use-after-free in cifs_oplock_break

CVEs

• CVE-2025-37810
• CVE-2025-38200
• CVE-2025-38449
• CVE-2025-38461
• CVE-2025-38472
• CVE-2025-38527

References

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