RHSA-2025:10829 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 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: um: Fix out-of-bounds read in LDT setup (CVE-2022-49395)
• kernel: dm ioctl: prevent potential spectre v1 gadget (CVE-2022-49122)
• kernel: ipv6: mcast: extend RCU protection in igmp6_send() (CVE-2025-21759)
• kernel: Squashfs: fix handling and sanity checking of xattr_ids count (CVE-2023-52933)
• kernel: net: atm: fix use after free in lec_send() (CVE-2025-22004)
• kernel: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() (CVE-2025-22121)
• kernel: ibmvnic: Use kernel helpers for hex dumps (CVE-2025-22104)
• kernel: ext4: ignore xattrs past end (CVE-2025-37738)
• kernel: udf: Fix a slab-out-of-bounds write bug in udf_find_entry() (CVE-2022-49846)
• kernel: net: atlantic: fix aq_vec index out of range error (CVE-2022-50066)

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 9.0 x86_64

Fixes

• BZ - 2347899 - CVE-2022-49395 kernel: um: Fix out-of-bounds read in LDT setup
• BZ - 2348154 - CVE-2022-49122 kernel: dm ioctl: prevent potential spectre v1 gadget
• BZ - 2348596 - CVE-2025-21759 kernel: ipv6: mcast: extend RCU protection in igmp6_send()
• BZ - 2355476 - CVE-2023-52933 kernel: Squashfs: fix handling and sanity checking of xattr_ids count
• BZ - 2357142 - CVE-2025-22004 kernel: net: atm: fix use after free in lec_send()
• BZ - 2360199 - CVE-2025-22121 kernel: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()
• BZ - 2360265 - CVE-2025-22104 kernel: ibmvnic: Use kernel helpers for hex dumps
• BZ - 2363305 - CVE-2025-37738 kernel: ext4: ignore xattrs past end
• BZ - 2363432 - CVE-2022-49846 kernel: udf: Fix a slab-out-of-bounds write bug in udf_find_entry()
• BZ - 2373683 - CVE-2022-50066 kernel: net: atlantic: fix aq_vec index out of range error

CVEs

• CVE-2022-49122
• CVE-2022-49395
• CVE-2022-49846
• CVE-2022-50066
• CVE-2023-52933
• CVE-2025-21759
• CVE-2025-22004
• CVE-2025-22104
• CVE-2025-22121
• CVE-2025-37738

References

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