GSD-2023-1000446 ext4: fix undefined behavior in bit shift for ext4_check_flag_values
Undefined behavior in ext4 bit shift logic may cause kernel instability or crashes, requiring a patch for local attackers.
- 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-2023-1000446?
GSD-2023-1000446 is a 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 undefined behavior in bit shift for ext4_check_flag_values
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 v6.0.18 by commit 5da9e607547f73dc7a643f35b0487992fd66910f, it was introduced in version v3.8 by commit 9a4c8019471386c6fb039ae9e30f5216b6b55a9e. For more details please see the references link.
Which versions are affected by GSD-2023-1000446?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000446?
No fix has been published for GSD-2023-1000446 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1000446 being exploited?
There is no known exploitation of GSD-2023-1000446 in the wild and no public exploit code.