Kernel Security Update — AlmaLinux 9 (ALSA-2026:49212)

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

Security Fix(es):

* kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)
* kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)
* kernel: net: sched: UAF via missing handler for TC…

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

Security Fix(es):  

  * kernel: ipc: limit next_id allocation to the valid ID range (CVE-2026-52923)
  * kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)
  * kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle ()
  * kernel: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (CVE-2026-64530)


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.

sudo dnf update