CVE-2024-46673 scsi: aacraid: Fix double-free on probe failure
A double-free vulnerability in the aacraid driver allows attackers to cause a denial of service or potentially execute code via probe failure.
- 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-2024-46673?
CVE-2024-46673 is a high-severity use after free vulnerability in Linux kernel, published on 13 Sep 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:
scsi: aacraid: Fix double-free on probe failure
aac_probe_one() calls hardware-specific init functions through the aac_driver_ident::init pointer, all of which eventually call down to aac_init_adapter().
If aac_init_adapter() fails after allocating memory for aac_dev::queues, it frees the memory but does not clear that member.
After the hardware-specific init function returns an error, aac_probe_one() goes down an error path that frees the memory pointed to by aac_dev::queues, resulting.in a double-free.
Weakness: CWE-415
Which versions are affected by CVE-2024-46673?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46673?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-46673 being exploited?
There is no known exploitation of CVE-2024-46673 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-49191, AZL-49251, BELL-CVE-2024-46673, DEBIAN-CVE-2024-46673, GHSA-hggx-qfvf-7mfh, UBUNTU-CVE-2024-46673.