Important: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: page_pool: Fix use-after-free in page_pool_recycle_in_ring (CVE-2025-38129) * kernel: Linux kernel:A use-after-free in bridge multicast in br_multicast_port_ctx_init (CVE-2025-38248) * kernel: smc: Fix use-after-free in __pnet_find_base_ndev() (CVE-2025-40064) * kernel: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats (CVE-2025-68800) * kernel: Linux kernel: Use-after-free in teql queueing discipline can lead to privilege escalation (CVE-2026-23074) 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: page_pool: Fix use-after-free in page_pool_recycle_in_ring (CVE-2025-38129) * kernel: Linux kernel:A use-after-free in bridge multicast in br_multicast_port_ctx_init (CVE-2025-38248) * kernel: smc: Fix use-after-free in __pnet_find_base_ndev() (CVE-2025-40064) * kernel: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats (CVE-2025-68800) * kernel: Linux kernel: Use-after-free in teql queueing discipline can lead to privilege escalation (CVE-2026-23074) 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-2026:3083
- https://access.redhat.com/security/cve/CVE-2025-38129
- https://access.redhat.com/security/cve/CVE-2025-38248
- https://access.redhat.com/security/cve/CVE-2025-40064
- https://access.redhat.com/security/cve/CVE-2025-68800
- https://access.redhat.com/security/cve/CVE-2026-23074
- https://bugzilla.redhat.com/2376034
- https://bugzilla.redhat.com/2378981
- https://bugzilla.redhat.com/2406747
- https://bugzilla.redhat.com/2429065
- https://bugzilla.redhat.com/2436791
- https://errata.almalinux.org/8/ALSA-2026-3083.html