PT-2026-34978 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-06 · CVE-2026-31626

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the rtw BIP verify() function within the rtl8723bs staging driver where the le tmp64 variable is not fully initialized. Only 6 bytes are copied into this 8-byte variable, which leads to the use of uninitialized data for the remaining two bytes.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

CVE-2026-31626

ECHO-FAB8-B5A6-F9E3

OPENSUSE-SU-2026:10703-1

Affected Products

Linux Kernel

References · 78

• https://git.kernel.org/stable/c/8c964b82a4e97ec7f25e17b803ee196009b38a57 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31626 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10703-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31626 · Vendor Advisory
• https://git.kernel.org/stable/c/d5b8f5f8d6fc09a8af5ed139c688660f578ed732 · Patch
• https://git.kernel.org/stable/c/c65ee4d3be5df395e48afbcd0946dd5fce4338a9 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31626 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31626 · Vendor Advisory
• https://git.kernel.org/stable/c/b487a7754d874230299d5a9c2710ec4df8b2ed8a · Patch
• https://git.kernel.org/stable/c/c2026c6b603ebec52f55015496703fe79077accf · Patch
• https://cve.org/CVERecord?id=CVE-2026-31626 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-31626 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31626 · Vendor Advisory
• https://git.kernel.org/stable/c/ef74ce5f0bc0e53ce702d8a794f3957884a26efc · Patch
• https://suse.com/security/cve/CVE-2026-31577 · Note