CVE-2022-49273

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

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

rtc: pl031: fix rtc features null pointer dereference

When there is no interrupt line, rtc alarm feature is disabled.

The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference.

Clear RTC_FEATURE_ALARM after the rtc device is allocated.

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

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= d9b0dd54a1943f47a381a474f8ea2c94466110c0, < cd2722e411e8ab7e5ae41102f6925fa13dffdac5; >= d9b0dd54a1943f47a381a474f8ea2c94466110c0, < d274ce4a3dfd0b9a292667535578359b865765cb; >= d9b0dd54a1943f47a381a474f8ea2c94466110c0, < 1b915703964f7e636961df04c540261dc55c6c70; >= d9b0dd54a1943f47a381a474f8ea2c94466110c0, < ea6af39f3da50c86367a71eb3cc674ade3ed244c
LinuxLinux5.12

References

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2022-49273: Medium severity, CVSS 5.5 | Vulnix