CVE-2026-23038
In the Linux kernel, the following vulnerability has been resolved: pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node() In nfs4_ff_alloc_deviceid_node(), if the allocation for ds_versions fails, the function jumps to the out_scratch label without freeing the already allocated dsaddrs list, leading to a memory leak. Fix this by jumping to the out_err_drain_dsaddrs label, which properly frees the dsaddrs list before cleaning up other resources.
Affected versions
Linux kernel versions
4.0
and later are affected. Fixed in
5.10.249,
5.15.199,
6.1.162,
6.6.122,
6.12.67,
6.18.7,
6.19
and their respective stable series.
References
The following references provide additional information about CVE-2026-23038 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/0c728083654f0066f5e10a1d2b0bd0907af19a58
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PatchKernel patch commithttps://git.kernel.org/stable/c/27c90d8ed81e7a289c9fe41b5e31d8bb609a3385
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PatchKernel patch commithttps://git.kernel.org/stable/c/34b9dd179818ff7af2b36410985fd8166573c62d
Frequently asked questions
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What is CVE-2026-23038?
CVE-2026-23038 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.0 onward and has been patched in 5.10.249, 5.15.199, 6.1.162 and others. CVE-2026-23038 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-23038?
Yes — CVE-2026-23038 has been patched. Fixed versions include 5.10.249, 5.15.199, 6.1.162 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-23038 actively exploited?
No — CVE-2026-23038 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.