CVE-2021-47263

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

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

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634	patch
https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862	patch
https://git.kernel.org/stable/c/dbec64b11c65d74f31427e2b9d5746fbf17bf840	patch

Frequently Asked Questions

What is the severity of CVE-2021-47263?: CVE-2021-47263 has been scored as a medium severity vulnerability.
How to fix CVE-2021-47263?: To fix CVE-2021-47263, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-47263 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-47263 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-47263?: CVE-2021-47263 affects Linux Linux, Linux Linux.

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