GSD-2023-1001527 ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
A bug in the ext4 filesystem can cause a kernel crash when processing a malformed boot loader inode, leading to denial of service.
- 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-2023-1001527?
GSD-2023-1001527 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode
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 v4.9.337 by commit e76ede9d2c9e0af4573342b56d7cdbf757c18084. For more details please see the references link.
Which versions are affected by GSD-2023-1001527?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001527?
No fix has been published for GSD-2023-1001527 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-2023-1001527 being exploited?
There is no known exploitation of GSD-2023-1001527 in the wild and no public exploit code.