Race condition in Linux kernel dma dw-edma driver

1) Race condition

EUVDB-ID: #VU91469

Risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-27409

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the dw_hdma_v0_core_write_chunk() and dw_hdma_v0_core_start() functions in drivers/dma/dw-edma/dw-hdma-v0-core.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/227ef58a9b0c372efba422e8886a8015a1509eba
http://git.kernel.org/stable/c/17be6f5cb223f22e4733ed8fe8b2247cbb677716
http://git.kernel.org/stable/c/712a92a48158e02155b4b6b21e03a817f78c9b7e

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.