RHSA-2025:11299 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

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: cifs: potential buffer overflow in handling symlinks (CVE-2022-49058)
• kernel: media: uvcvideo: Remove dangling pointers (CVE-2024-58002)
• kernel: media: uvcvideo: Fix double free in error path (CVE-2024-57980)
• kernel: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes (CVE-2025-21991)
• kernel: net: atm: fix use after free in lec_send() (CVE-2025-22004)
• kernel: ext4: fix off-by-one error in do_split (CVE-2025-23150)
• kernel: ext4: ignore xattrs past end (CVE-2025-37738)
• kernel: misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (CVE-2022-49788)

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 8 x86_64
• Red Hat Enterprise Linux for Real Time for NFV 8 x86_64

Fixes

• BZ - 2348254 - CVE-2022-49058 kernel: cifs: potential buffer overflow in handling symlinks
• BZ - 2348513 - CVE-2024-58002 kernel: media: uvcvideo: Remove dangling pointers
• BZ - 2348599 - CVE-2024-57980 kernel: media: uvcvideo: Fix double free in error path
• BZ - 2356917 - CVE-2025-21991 kernel: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes
• BZ - 2357142 - CVE-2025-22004 kernel: net: atm: fix use after free in lec_send()
• BZ - 2363268 - CVE-2025-23150 kernel: ext4: fix off-by-one error in do_split
• BZ - 2363305 - CVE-2025-37738 kernel: ext4: ignore xattrs past end
• BZ - 2363378 - CVE-2022-49788 kernel: misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram()

CVEs

• CVE-2022-49058
• CVE-2022-49788
• CVE-2024-57980
• CVE-2024-58002
• CVE-2025-21991
• CVE-2025-22004
• CVE-2025-23150
• CVE-2025-37738

References

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