GSD-2022-1000733 bpf: Fix crash due to out of bounds access into reg2btf_ids.
A local attacker can trigger a kernel crash via out-of-bounds access in the BPF subsystem, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1000733?
GSD-2022-1000733 is a memory corruption vulnerability in Kernel, published on 18 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Fix crash due to out of bounds access into reg2btf_ids.
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.16.12 by commit f0ce1bc9e0235dd7412240be493d7ea65ed9eadc, it was introduced in version v5.16.11 by commit 77459bc4d5e2c6f24db845780b4d9d60cf82d06a. For more details please see the references link.
Which versions are affected by GSD-2022-1000733?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000733?
No fix has been published for GSD-2022-1000733 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2022-1000733 being exploited?
There is no known exploitation of GSD-2022-1000733 in the wild and no public exploit code.