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CVE-2026-98057

Unknown

Last modified

CVE-2026-98057 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Add checking nr_subbufs to persistent ring buffer validation Sashiko reported that the code was using meta->nr_subbufs without making sure that it matched the nr_pages + 1 on data that was assuming the two were the same. Add a check to the persistent ring buffer validation code to make sure that the saved nr_subbufs matches what we expect..

Description

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Add checking nr_subbufs to persistent ring buffer validation Sashiko reported that the code was using meta->nr_subbufs without making sure that it matched the nr_pages + 1 on data that was assuming the two were the same. Add a check to the persistent ring buffer validation code to make sure that the saved nr_subbufs matches what we expect.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3ec743d558f111d8999aea24577ba66c65ee2eeb, < f0467190e6a9fc61e343c8064ef16aad513788c3; >= f5b95f1fa2ef3a03f49eeec658ba97e721412b32, < 69d502457e3f76142f7fcf6e2625e80e0ce8a60f; >= f5b95f1fa2ef3a03f49eeec658ba97e721412b32, < 6c001a62c34f13fe1c6a24304c289b387d9e697d; 0d547a6f5e8fad26ebc12f501d7d19fccdbad6bf; >= 6.12.16, < 6.12.111; >= 6.13.4, < 6.14
LinuxLinux6.14

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98057?
In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Add checking nr_subbufs to persistent ring buffer validation Sashiko reported that the code was using meta->nr_subbufs without making sure that it matched the nr_pages + 1 on data that was assuming the two were the same. Add a check to the persistent ring buffer validation code to make sure that the saved nr_subbufs matches what we expect.
How severe is CVE-2026-98057?
Severity scoring for CVE-2026-98057 is pending analysis.
How do I fix CVE-2026-98057?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST