Moderate: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: RDMA/mlx5: Fix page_size variable overflow (CVE-2025-22091) * kernel: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() (CVE-2025-22121) * kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797) * kernel: powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmap (CVE-2025-38088) * kernel: net/mdiobus: Fix potential out-of-bounds clause 45 read/write access (CVE-2025-38110) 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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: RDMA/mlx5: Fix page_size variable overflow (CVE-2025-22091) * kernel: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() (CVE-2025-22121) * kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797) * kernel: powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmap (CVE-2025-38088) * kernel: net/mdiobus: Fix potential out-of-bounds clause 45 read/write access (CVE-2025-38110) 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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2025:11855
- https://access.redhat.com/security/cve/CVE-2025-22091
- https://access.redhat.com/security/cve/CVE-2025-22121
- https://access.redhat.com/security/cve/CVE-2025-37797
- https://access.redhat.com/security/cve/CVE-2025-38088
- https://access.redhat.com/security/cve/CVE-2025-38110
- https://bugzilla.redhat.com/2360186
- https://bugzilla.redhat.com/2360199
- https://bugzilla.redhat.com/2363672
- https://bugzilla.redhat.com/2375528
- https://bugzilla.redhat.com/2376035
- https://errata.almalinux.org/10/ALSA-2025-11855.html