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High RLSA-2026:8921 2 CVEs

Important: kernel security update

Published Apr 28, 2026 · Updated Apr 28, 2026

Summary

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

Security Fix(es):

* kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)

* kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 9 kernel 0:5.14.0-611.49.1.el9_7

Vulnerabilities 2

  • Critical 9.8

    scsi: qla2xxx: Fix improper freeing of purex item

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix improper freeing of purex item In qla2xxx_process_purls_iocb(), an item is allocated via qla27xx_copy_multiple_pkt(), which internally calls qla24xx_alloc_purex_item(). The…

  • Unscored —

    net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit

    In the Linux kernel, the following vulnerability has been resolved: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit The following setup can trigger a WARNING in htb_activate due to the condition: !cl->leaf.q->q.qlen tc qdisc del dev lo …

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2394648
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2425046