CVE-2023-52664 net: atlantic: eliminate double free in error handling logic
A double free vulnerability in the Atlantic network driver allows attackers to cause denial of service or potentially execute code via memory corruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-52664?
CVE-2023-52664 is a high-severity memory corruption vulnerability in Linux kernel, published on 17 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
net: atlantic: eliminate double free in error handling logic
Driver has a logic leak in ring data allocation/free, where aq_ring_free could be called multiple times on same ring, if system is under stress and got memory allocation error.
Ring pointer was used as an indicator of failure, but this is not correct since only ring data is allocated/deallocated. Ring itself is an array member.
Changing ring allocation functions to return error code directly. This simplifies error handling and eliminates aq_ring_free on higher layer.
Weakness: CWE-415
Which versions are affected by CVE-2023-52664?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52664?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-52664 being exploited?
There is no known exploitation of CVE-2023-52664 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-54956, BELL-CVE-2023-52664, DEBIAN-CVE-2023-52664, GHSA-p7h5-86fq-j7r3, ROOT-OS-DEBIAN-11-CVE-2023-52664, UBUNTU-CVE-2023-52664.