SB20260529214 - Memory corruption in Linux kernel hwmon driver
Published: May 29, 2026
Security Bulletin ID
SB20260529214
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory corruption (CVE-ID: CVE-2026-46007)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 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
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper memory buffer restrictions in the powerz hwmon driver DMA transfer buffer when performing DMA operations. A local user can trigger DMA activity to cause a denial of service.
The issue arises because the transfer buffer may share a cacheline with a following mutex on affected architectures.
Remediation
Install update from vendor's website.