CVE-2021-47263

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

gpio: wcd934x: Fix shift-out-of-bounds error

bit-mask for pins 0 to 4 is BIT(0) to BIT(4) however we ended up with BIT(n - 1) which is not right, and this was caught by below usban check

UBSAN: shift-out-of-bounds in drivers/gpio/gpio-wcd934x.c:34:14

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= 59c324683400b41caa6d85b091e812ee3d5415c3, < e0b518a2eb44d8a74c19e50f79a8ed393e96d634; >= 59c324683400b41caa6d85b091e812ee3d5415c3, < dd55331d493b7ea75c5db1f24d6822946fde2862; >= 59c324683400b41caa6d85b091e812ee3d5415c3, < dbec64b11c65d74f31427e2b9d5746fbf17bf840
LinuxLinux5.6

References

Timeline

Published
May 21, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2021-47263: Medium severity, CVSS 5.5 | Vulnix