GSD-2022-1008091 bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
A NULL pointer dereference in bpftool allows local attackers to cause a denial of service by pinning objects without a file argument.
- 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-2022-1008091?
GSD-2022-1008091 is a vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
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 v5.10.155 by commit 8c80b2fca4112d724dde477aed13f7b0510a2792, it was introduced in version v5.7 by commit 75a1e792c335b5c6d7fdb1014da47aeb64c5944f. For more details please see the references link.
Which versions are affected by GSD-2022-1008091?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008091?
No fix has been published for GSD-2022-1008091 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1008091 being exploited?
There is no known exploitation of GSD-2022-1008091 in the wild and no public exploit code.