SB20260918180 - Race condition in Linux kernel dma dw-edma driver
Published: September 18, 2026
Security Bulletin ID
SB20260918180
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition (CVE-ID: CVE-2026-93041)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a race condition in the dw-edma abort interrupt handler when aborting a DMA request while queued descriptors are being started. A local user can trigger an abort during the state transition to leave queued descriptors unprocessed and the channel idle.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/075de95d7a7cd8fecfb6fe1c685c9064fc6c9d76
- https://git.kernel.org/stable/c/0b028e5175590fb34ccbd537ff5b9cd386ce5747
- https://git.kernel.org/stable/c/0c3294066c36d5980fd9c8192dcb53bb9ccd1f7b
- https://git.kernel.org/stable/c/4a72f81b8681b2ad7705cf039974c443dcc8ff00
- https://git.kernel.org/stable/c/b7b8b08cd6422f7ed783226ac4aa6cebe398ab54
- https://git.kernel.org/stable/c/dd80e259f65d932634e26d366570d71669ef6654
- https://git.kernel.org/stable/c/e20c6539394ac8d70240b85bb5963c74a3a49789
- https://git.kernel.org/stable/c/f71c94c1a657492e015be227d44c4198a8e7a91d