CVE-2022-49273

MEDIUM EPSS 14.9%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
14.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.12  –  <5.15.33
linuxlinux_kernel*≥5.16  –  <5.16.19
linuxlinux_kernel*≥5.17  –  <5.17.2

References 4

  • git.kernel.org https://git.kernel.org/stable/c/1b915703964f7e636961df04c540261dc55c6c70
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1b915703964f7e636961df04c540261dc55c6c70
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c
    Patch