GSD-2022-1006459 ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0
A bug in ext4 extents parsing can cause a denial of service when eh_entries is zero and depth is positive, affecting Linux kernel users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1006459?
GSD-2022-1006459 is a denial of service vulnerability in Kernel, published on 9 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0
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 v6.0 by commit 29a5b8a137ac8eb410cc823653a29ac0e7b7e1b0. For more details please see the references link.
Which versions are affected by GSD-2022-1006459?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006459?
No fix has been published for GSD-2022-1006459 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1006459 being exploited?
There is no known exploitation of GSD-2022-1006459 in the wild and no public exploit code.