PT-2026-34966 · Linux · Linux Kernel
CVE-2026-31614
·
Published
2026-04-24
·
Updated
2026-07-24
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the SMB client within the
check wsl eas() function. A bounds check incorrectly uses the base pointer of the extended attribute (EA) instead of the ea data field, which is offset by 8 bytes. This off-by-8 error allows an untrusted server to cause the system to read past the end of the input/output vector (iov), potentially leaking up to 8 bytes of kernel heap memory during the EA name comparison and influencing how WSL extended attributes (xattr) are interpreted.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel