PT-2025-8166 · Linux+6 · Linux Kernel+7

Published 2022-01-12 · Updated 2025-09-29 · CVE-2022-49238

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free issue has been identified in the Linux kernel, specifically in the ath11k module, which handles wireless networking for certain Qualcomm chips (QCA6390/WCN6855). The problem arises from a change in the WMI command sequence that was intended to fix a firmware crash but ended up skipping peer delete operations. This leads to a dangling pointer issue when the peer->sta is not set to NULL and is used later, resulting in a use-after-free warning from KASAN. The issue is triggered when a station disconnects from an AP.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALSA-2025_16880

BDU:2025-10584

CESA-2022_7683

CVE-2022-49238

RHSA-2022:7683

RHSA-2022:8267

RHSA-2022_7683

RHSA-2022_8267

SUSE-SU-2025:1176-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Centos

Linux Kernel

Qca6390

Red Hat

Suse

Wcn6855

Ath11K

References · 1302

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49238.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49238 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49238 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49238 · Security Note
• https://git.kernel.org/stable/c/212ad7cb7d7592669c067125949e0a8e31ce6a0b · Patch
• https://bdu.fstec.ru/vul/2025-10584 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49238 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://git.kernel.org/stable/c/400705c50bbf184794c885d1efad7fe9ccf1471a · Patch
• https://osv.dev/vulnerability/CVE-2022-49238 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49238 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49238 · Security Note
• https://suse.com/security/cve/CVE-2022-49579 · Note
• https://suse.com/security/cve/CVE-2022-49433 · Note