RHSA-2026:85774: CVEs fixed (Red Hat)

RHSA-2026:85774 fixes 3 tracked CVEs. Affected systems and fixed versions.

• CVE-2026-74752 CRITICAL 9.8 In the Linux kernel, the following vulnerability has been resolved: sctp: validate cookie AUTH state before u
• CVE-2026-89479 CRITICAL 9.8 In the Linux kernel, the following vulnerability has been resolved: sctp: stop processing a packet once its a
• CVE-2026-74588 CRITICAL 9.8 In the Linux kernel, the following vulnerability has been resolved: sctp: keep chunk->transport in step with

Applies to

• RHEL 8 · fixed in kernel-rt-4.18.0-553.176.1.rt7.517.el8_10

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