PT-2024-11269 · Linux+2 · Linux Kernel+2

Andy Shevchenko + 4 · Published 2021-05-25 · Updated 2024-06-24 · CVE-2021-47263

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A shift-out-of-bounds error was found in the Linux kernel, specifically in the gpio-wcd934x driver. The bit-mask for pins 0 to 4 is incorrectly set to BIT(n - 1) instead of BIT(0) to BIT(4). This issue was caught by the UBSAN check, which reported a shift-out-of-bounds error in the drivers/gpio/gpio-wcd934x.c file at line 34, column 14.

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

Weakness Enumeration

CWE-1335

Related Identifiers

BDU:2025-15440

CVE-2021-47263

OPENSUSE-SU-2024_2185-1

SUSE-SU-2024:2010-1

SUSE-SU-2024:2185-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 422

• https://ubuntu.com/security/CVE-2021-47263 · Vendor Advisory
• https://git.kernel.org/stable/c/dbec64b11c65d74f31427e2b9d5746fbf17bf840 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-47263 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-15440 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2185-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47263 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47263 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47263 · Security Note
• https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:2010-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-47263 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47263 · Vendor Advisory
• https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862 · Patch
• https://suse.com/security/cve/CVE-2021-47329 · Note
• https://suse.com/security/cve/CVE-2024-27413 · Note