The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:38491 advisory.

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

    Security Fix(es):

    * kernel: Linux kernel: Memory leak in networking due to incorrect GRO packet handling (CVE-2026-22979)

    * kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)

    * kernel: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086)

    * kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016)

    * kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock     (CVE-2026-53166)

    Bug Fix(es) and Enhancement(s):

    * Kernel panic very early during boot while reading a tracefs file (available_filter_functions) due to     invalid module name pointer [9.8.z] (JIRA:RHEL-183236)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 9 : kernel (RHSA-2026:38491)

medium Nessus Plugin ID 326518

Version 1.2

Version 1.1

Version 1.2 Jul 27, 2026, 10:22 AM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:H/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:H/RL:O/RC:C") Exploit attributes ("Exploited by malware" set to "True") Plugin Feed: 202607271022
Version 1.1 Jul 13, 2026, 11:53 PM New Plugin Feed: 202607132353