RHSA-2026:36216: Important: kernel security update

Published Jul 7, 2026
·
Updated

Important: kernel security update

Other sources

The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: tcp: fix potential race in tcpv6synrecvsock() (CVE-2026-43198) kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4srqevent() (CVE-2026-46181) 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.

— Red Hat

Affected Software

65 affected componentsFixes available
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support
redhat/kernel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/bpftool<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/bpftool-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-abi-whitelists<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-doc<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-headers<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-libs<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-libs-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/perf<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/perf-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/python-perf<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/python-perf-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/bpftool<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/bpftool-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debuginfo-common-s390x<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-headers<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-kdump<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-kdump-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-kdump-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/perf<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/perf-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/python-perf<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/python-perf-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-bootwrapper<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debuginfo-common-ppc64<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-libs<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-libs-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/bpftool<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/bpftool-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-bootwrapper<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debug-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-debuginfo-common-ppc64le<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-headers<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-libs<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/kernel-tools-libs-devel<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/perf<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/perf-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/python-perf<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7
redhat/python-perf-debuginfo<3.10.0-1160.155.1.el7
3.10.0-1160.155.1.el7

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  2. Upgrade

    Upgrade redhat/bpftool to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  3. Upgrade

    Upgrade redhat/bpftool-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  4. Upgrade

    Upgrade redhat/kernel-abi-whitelists to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  5. Upgrade

    Upgrade redhat/kernel-debug to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  6. Upgrade

    Upgrade redhat/kernel-debug-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  7. Upgrade

    Upgrade redhat/kernel-debug-devel to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  8. Upgrade

    Upgrade redhat/kernel-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  9. Upgrade

    Upgrade redhat/kernel-devel to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  10. Upgrade

    Upgrade redhat/kernel-doc to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  11. Upgrade

    Upgrade redhat/kernel-headers to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  12. Upgrade

    Upgrade redhat/kernel-tools to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  13. Upgrade

    Upgrade redhat/kernel-tools-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  14. Upgrade

    Upgrade redhat/kernel-tools-libs to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  15. Upgrade

    Upgrade redhat/kernel-tools-libs-devel to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  16. Upgrade

    Upgrade redhat/perf to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  17. Upgrade

    Upgrade redhat/perf-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  18. Upgrade

    Upgrade redhat/python-perf to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  19. Upgrade

    Upgrade redhat/python-perf-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  20. Upgrade

    Upgrade redhat/kernel-debuginfo-common-s390x to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  21. Upgrade

    Upgrade redhat/kernel-kdump to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  22. Upgrade

    Upgrade redhat/kernel-kdump-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  23. Upgrade

    Upgrade redhat/kernel-kdump-devel to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  24. Upgrade

    Upgrade redhat/kernel-bootwrapper to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  25. Upgrade

    Upgrade redhat/kernel-debuginfo-common-ppc64 to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7
  26. Upgrade

    Upgrade redhat/kernel-debuginfo-common-ppc64le to a version that resolves this vulnerability.

    Fixed in 3.10.0-1160.155.1.el7

Event History

Jul 7, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·12:23 PM
Data Sourced
via Red Hat·12:23 PM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:36216?

The severity of RHSA-2026:36216 is classified as high with a score of 7.

2

What security vulnerabilities are addressed in RHSA-2026:36216?

RHSA-2026:36216 addresses vulnerabilities related to a potential race condition in tcp_v6_syn_recv_sock() and misuse of RCU in mlx4_srq_event().

3

How do I fix RHSA-2026:36216?

To fix RHSA-2026:36216, users should apply the latest kernel updates provided by RedHat immediately.

4

What impact does RHSA-2026:36216 have on my system?

RHSA-2026:36216 can potentially lead to system vulnerabilities that may compromise network security if not addressed.

5

When was RHSA-2026:36216 published?

RHSA-2026:36216 was published on July 7, 2026.

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