RHSA-2026:19664: CVEs fixed (Red Hat)

RHSA-2026:19664 fixes 3 tracked CVEs. Affected systems and fixed versions.

• CVE-2026-46300 HIGH 7.8 UPGRADE In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker
• CVE-2026-43503 HIGH 8.8 UPGRADE In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker
• CVE-2026-46333 HIGH 7.1 UPGRADE MITIGATE In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' l

Applies to

• RHEL 8 · fixed in kernel-rt-4.18.0-553.125.1.rt7.466.el8_10

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