CVE-2022-49785 x86/sgx: Add overflow check in sgx_validate_offset_length()
A missing overflow check in the Linux kernel SGX driver allows local attackers to trigger memory corruption, potentially leading to privilege escalation or system crashes.
- 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-2022-49785?
CVE-2022-49785 is a medium-severity vulnerability in Linux kernel, published on 1 May 2025. 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:
x86/sgx: Add overflow check in sgx_validate_offset_length()
sgx_validate_offset_length() function verifies "offset" and "length" arguments provided by userspace, but was missing an overflow check on their addition. Add it.
Which versions are affected by CVE-2022-49785?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49785?
Apply the vendor's patch.
Is CVE-2022-49785 being exploited?
There is no known exploitation of CVE-2022-49785 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49785, GHSA-rpgj-4c7v-rffq, UBUNTU-CVE-2022-49785.