SB20260816379 - NULL pointer dereference in Linux kernel dma dw-edma driver
Published: August 16, 2026
Security Bulletin ID
SB20260816379
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) NULL pointer dereference (CVE-ID: CVE-2026-72147)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 6.8 [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]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a NULL pointer dereference in dw_edma_pcie_probe() when binding a device dynamically via sysfs without driver data. A local user can bind a matching device entry without driver data to trigger a kernel crash and cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/043acb00e4edd4b9ffb9dd0e357482dcd9086486
- https://git.kernel.org/stable/c/044f7b3252d4fb2143d4999eec2800c08f1001ed
- https://git.kernel.org/stable/c/11d7cfe0c119691b2dafbb699bbca90258c678aa
- https://git.kernel.org/stable/c/2733b5dcb5a4ba4446f7bac954b97e4501dcaa64
- https://git.kernel.org/stable/c/a1042599fa8f9e313be176eb1ea1ae199f983419