In the Linux kernel, the following vulnerability has been resolved: netfs: Fix read abandonment during retry Under certain circumstances, all the remaining subrequests from a read request will get abandoned during retry. The abandonment process expects the 'subreq' variable to be set to the place to start abandonment from, but it doesn't always have a useful value (it will be uninitialised on the first pass through the loop and it may point to a deleted subrequest on later passes). Fix the first jump to "abandon:" to set subreq to the start of the first subrequest expected to need retry (which, in this abandonment case, turned out unexpectedly to no longer have NEED_RETRY set). Also clear the subreq pointer after discarding superfluous retryable subrequests to cause an oops if we do try to access it.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - netfs: Fix read abandonment during retry Under certain circumstances, all the remaining subrequests from a     read request will get abandoned during retry. The abandonment process expects the 'subreq' variable to be     set to the place to start abandonment from, but it doesn't always have a useful value (it will be     uninitialised on the first pass through the loop and it may point to a deleted subrequest on later     passes). Fix the first jump to abandon: to set subreq to the start of the first subrequest expected to     need retry (which, in this abandonment case, turned out unexpectedly to no longer have NEED_RETRY set).
    Also clear the subreq pointer after discarding superfluous retryable subrequests to cause an oops if we do     try to access it. (CVE-2026-31435)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
319659	SUSE SLES16 Security Update : kernel (SUSE-SU-2026:21845-1)	Nessus	SuSE Local Security Checks	high
318240	SUSE SLES16 Security Update : kernel (SUSE-SU-2026:21860-1)	Nessus	SuSE Local Security Checks	high
318102	openSUSE 16 Security Update : kernel (openSUSE-SU-2026:20826-1)	Nessus	SuSE Local Security Checks	high
316948	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1746)	Nessus	Amazon Linux Local Security Checks	high
309693	Linux Distros Unpatched Vulnerability : CVE-2026-31435	Nessus	Misc.	high

Detections

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CVE-2026-31435

high

Tenable Plugins

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high

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