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High ALSA-2026:42550 2 CVEs

Important: kernel-rt security, bug fix, and enhancement update

Published Jul 21, 2026 · Updated Oct 29, 2026

Summary

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: RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss() (CVE-2026-46117)
* kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp (CVE-2026-53071)

Bug Fix(es) and Enhancement(s):

* [almalinux-8] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected - at: vmd_pci_write+0x85/0xe0 - deadlock (JIRA:AlmaLinux-174916)

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 10

ReleasePackageFixed in
AlmaLinux · 8 kernel-rt 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-core 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-debug 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-debug-core 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-debug-devel 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-debug-modules 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-debug-modules-extra 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-devel 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-modules 4.18.0-553.146.1.rt7.487.el8_10
AlmaLinux · 8 kernel-rt-modules-extra 4.18.0-553.146.1.rt7.487.el8_10

Vulnerabilities 2

  • High 8.8

    Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the…

  • High 7.8

    RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()

    In the Linux kernel, the following vulnerability has been resolved: RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss() Sashiko points out that the user can specify WQs sharing the same CQ as a part of the uAPI and this will trigger the WA…

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-46117
  • report
    https://access.redhat.com/security/cve/CVE-2026-53071
  • report
    https://bugzilla.redhat.com/2482576
  • report
    https://bugzilla.redhat.com/2492458
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-42550.html