Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2022-49848
CVE-2022-49848:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2022-49848 is a vulnerability discovered in the Linux kernel, specifically affecting the phy: qcom-qmp-combo component. The vulnerability was disclosed on May 1, 2025, and involves a NULL pointer dereference issue during runtime resume operations. The issue particularly affects platforms that do not provide a PCS_USB offset, such as SC7180 (NVD, Wiz).
Technical details
The vulnerability was introduced by commit fc64623637da which added support for separate PCSUSB region but incorrectly handled the base address when no PCSUSB offset was provided. This resulted in a NULL pointer dereference during runtime resume operations. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (MEDIUM), with a vector string of CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (NVD, Red Hat).
Impact
The vulnerability can lead to a NULL pointer dereference, which typically results in a system crash or denial of service condition. This particularly affects platforms that do not provide a PCS_USB offset, such as SC7180 (Wiz).
Mitigation and workarounds
A fix has been implemented to correct the PCS_USB base used at runtime resume. For Red Hat Enterprise Linux 9, the fix has been deferred. Other versions of Red Hat Enterprise Linux (6, 7, and 8) are not affected by this vulnerability (Red Hat).
Additional resources
Source: This report was generated using AI
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