CVE-2024-42067 bpf: Take return from set_memory_rox() into account with bpf_jit_binary_lock_ro()
Failure to check return values in BPF JIT locking allows memory protection bypass, potentially enabling privilege escalation or code execution.
- 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-2024-42067?
CVE-2024-42067 is a high-severity vulnerability in Linux kernel, published on 29 Jul 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:
bpf: Take return from set_memory_rox() into account with bpf_jit_binary_lock_ro()
set_memory_rox() can fail, leaving memory unprotected.
Check return and bail out when bpf_jit_binary_lock_ro() returns an error.
Weakness: CWE-252
Which versions are affected by CVE-2024-42067?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42067?
Apply the vendor's patch.
Is CVE-2024-42067 being exploited?
There is no known exploitation of CVE-2024-42067 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-47137, AZL-47157, BELL-CVE-2024-42067, DEBIAN-CVE-2024-42067, GHSA-x8rh-6x6w-x2xg, ROOT-OS-DEBIAN-11-CVE-2024-42067 and 3 more.