CVE-2022-49323

MEDIUM

Linux Kernel - Null Pointer Dereference in arm_smmu_device_probe

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe() It will cause null-ptr-deref when using 'res', if platform_get_resource() returns NULL, so move using 'res' after devm_ioremap_resource() that will check it to avoid null-ptr-deref. And use devm_platform_get_and_ioremap_resource() to simplify code.

References (5)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0026
EPSS Percentile 17.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (17)
linux/Kernel 4.11.0 - 5.10.122linux
linux/Kernel 5.11.0 - 5.15.47linux
linux/Kernel 5.16.0 - 5.17.15linux
linux/Kernel 5.18.0 - 5.18.4linux
Linux/Linux < 4.11
Linux/Linux 4.11
Linux/Linux 5.10.122 - 5.10.*
Linux/Linux 5.15.47 - 5.15.*
Linux/Linux 5.17.15 - 5.17.*
Linux/Linux 5.18.4 - 5.18.*
... and 7 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026