RHSA-2025:18043 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service.

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

Security Fix(es):

• kernel: drm/vkms: Fix use after free and double free on init error (CVE-2025-22097)
• kernel: net_sched: ets: Fix double list add in class with netem as child qdisc (CVE-2025-37914)
• kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing (CVE-2022-50229)
• kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (CVE-2022-50087)
• kernel: bpf: Don't use tnum_range on array range checking for poke descriptors (CVE-2022-49985)
• kernel: drm/amd/display: clear optc underflow before turn off odm clock (CVE-2022-49969)
• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
• kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
• kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)
• kernel: do_change_type(): refuse to operate on unmounted/not ours mounts (CVE-2025-38498)

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 - Extended Update Support Extension 8.6 x86_64
• Red Hat Enterprise Linux Server - AUS 8.6 x86_64
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64

Fixes

• BZ - 2360223 - CVE-2025-22097 kernel: drm/vkms: Fix use after free and double free on init error
• BZ - 2367500 - CVE-2025-37914 kernel: net_sched: ets: Fix double list add in class with netem as child qdisc
• BZ - 2373460 - CVE-2022-50229 kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing
• BZ - 2373539 - CVE-2022-50087 kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails
• BZ - 2373540 - CVE-2022-49985 kernel: bpf: Don't use tnum_range on array range checking for poke descriptors
• BZ - 2373635 - CVE-2022-49969 kernel: drm/amd/display: clear optc underflow before turn off odm clock
• BZ - 2376406 - CVE-2025-38211 kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction
• 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 - 2384422 - CVE-2025-38498 kernel: do_change_type(): refuse to operate on unmounted/not ours mounts

CVEs

• CVE-2022-49969
• CVE-2022-49985
• CVE-2022-50087
• CVE-2022-50229
• CVE-2025-22097
• CVE-2025-37914
• CVE-2025-38211
• CVE-2025-38449
• CVE-2025-38461
• CVE-2025-38498

References

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