SB20260424286 - Improper handling of exceptional conditions in Linux kernel dma xilinx driver
Published: April 24, 2026
Security Bulletin ID
SB20260424286
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) Improper handling of exceptional conditions (CVE-ID: CVE-2026-31439)
CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions
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 exception handling in the xdma driver regmap initialization logic when initializing mmio regmap access. A local user can trigger the vulnerable initialization path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4b6e1da50b22e5528b9003f376a3cecccce4decc
- https://git.kernel.org/stable/c/59f6ccd0f3345be2e8a78bdef2103e93f180633a
- https://git.kernel.org/stable/c/9787b3d9b908785b40bc3f2e6d7082fdb8fdd98a
- https://git.kernel.org/stable/c/e0adbf74e2a0455a6bc9628726ba87bcd0b42bf8
- https://git.kernel.org/stable/c/f27197ccfd2ecd2c71f27fd57c6d507e892ad24d