#VU104569 NULL pointer dereference in Linux kernel - CVE-2022-49424
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104569
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49424
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the MT2701_IOMMU_PAGE_SIZE() and mtk_iommu_probe_device() functions in drivers/iommu/mtk_iommu_v1.c, within the mtk_iommu_probe_device() function in drivers/iommu/mtk_iommu.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/8837c2682b9b2eed83e6212bcf79850c593a6fee
- https://git.kernel.org/stable/c/c3c2734e28d7fac50228c4d2b8896e8695adf304
- https://git.kernel.org/stable/c/de78657e16f41417da9332f09c2d67d100096939
- https://git.kernel.org/stable/c/e9c63c0f73a1bbfd02624f5eae7e881df8b6830f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14