#VU111506 NULL pointer dereference in Linux kernel - CVE-2022-50145
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111506
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-2022-50145
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 to_sf_pdma_desc(), sf_pdma_prep_dma_memcpy(), sf_pdma_desc_residue(), sf_pdma_enable_request(), sf_pdma_issue_pending() and sf_pdma_donebh_tasklet() functions in drivers/dma/sf-pdma/sf-pdma.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/4c7350b1dd8a192af844de32fc99b9e34c876fda
- https://git.kernel.org/stable/c/5ab2782c944e324008ef5d658f2494a9f0e3c5ac
- https://git.kernel.org/stable/c/a93b3f1e11971a91b6441b6d47488f4492cc113f
- https://git.kernel.org/stable/c/b2cc5c465c2cb8ab697c3fd6583c614e3f6cfbcc
- https://git.kernel.org/stable/c/b9b4992f897be9b0b9e3a3b956cab6b75ccc3f11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.137