RHSA-2025:17109 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.

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: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug (CVE-2022-48701)
• kernel: net: usb: smsc75xx: Limit packet length to skb->len (CVE-2023-53125)
• kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing (CVE-2022-50229)
• kernel: md-raid10: fix KASAN warning (CVE-2022-50211)
• kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200)
• kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)

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 Real Time for x86_64 - Extended Life Cycle Support 7 x86_64

Fixes

• BZ - 2278950 - CVE-2022-48701 kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug
• BZ - 2363686 - CVE-2023-53125 kernel: net: usb: smsc75xx: Limit packet length to skb->len
• BZ - 2373460 - CVE-2022-50229 kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing
• BZ - 2373662 - CVE-2022-50211 kernel: md-raid10: fix KASAN warning
• BZ - 2376392 - CVE-2025-38200 kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw
• BZ - 2383922 - CVE-2025-38477 kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate

CVEs

• CVE-2022-48701
• CVE-2022-50211
• CVE-2022-50229
• CVE-2023-53125
• CVE-2025-38200
• CVE-2025-38477

References

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