GSD-2021-1001747 bpf: Add oversize check before call kvcalloc()
A missing size check in the Linux kernel BPF subsystem could lead to memory allocation failures or 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-2021-1001747?
GSD-2021-1001747 is a vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Add oversize check before call kvcalloc()
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 v5.14.9 by commit b5fe7cdfee5901ce5513c30e554d51536e003bde. For more details please see the references link.
Which versions are affected by GSD-2021-1001747?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001747?
No fix has been published for GSD-2021-1001747 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001747 being exploited?
There is no known exploitation of GSD-2021-1001747 in the wild and no public exploit code.