PT-2025-8257 · Linux+4 · Linux Kernel+4

Yang Yingliang · Published 2022-05-06 · Updated 2025-09-29 · CVE-2022-49323

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A null pointer dereference issue was found in the Linux kernel, specifically in the arm smmu device probe() function. This issue occurs when the platform get resource() function returns NULL, causing a null pointer dereference when using the 'res' variable. To avoid this, the code has been modified to move the usage of 'res' after the devm ioremap resource() function, which checks for NULL. Additionally, the devm platform get and ioremap resource() function is used to simplify the code.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2026-02565

CESA-2023_2951

CVE-2022-49323

RHSA-2023:2458

RHSA-2023:2951

RHSA-2023_2458

RHSA-2023_2951

SUSE-SU-2025:02846-1

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_02846-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

References · 1500

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49323.json · Exploit
• https://git.kernel.org/stable/c/449fc4561762ad9ad85362d5f01f0d0df397457a · Patch
• https://osv.dev/vulnerability/CVE-2022-49323 · Vendor Advisory
• https://git.kernel.org/stable/c/80776a71340f57d6a4952635fc89f0342072f3ca · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02846-1 · Vendor Advisory
• https://git.kernel.org/stable/c/3660db29b0305f9a1d95979c7af0f5db6ea99f5d · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49323 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49323 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49323 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02565 · Security Note
• https://git.kernel.org/stable/c/98dd53a92825747395649f54d23512a13c3ed471 · Patch