cvedb.io
CVE-2026-64380
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-07-25T10:17:21.220 · Last modified 2026-07-25T10:17:21.220

Summary

In the Linux kernel, the following vulnerability has been resolved: smb: client: harden POSIX SID length parsing posix_info_sid_size() reads sid[1] to obtain the subauthority count, but its existing boundary check still accepts buffers with only one remaining byte. Require two bytes before reading sid[1] so all client paths that reuse the helper reject truncated POSIX SIDs safely.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.