GSD-2023-1000906 ext4: fix undefined behavior in bit shift for ext4_check_flag_values
Undefined behavior in ext4 bit shift logic may cause unexpected kernel behavior, requiring a patch to the Linux kernel.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2023-1000906?
GSD-2023-1000906 is a vulnerability in Kernel, published on 17 Jan 2023.
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 v5.15.87 by commit 205ac16628aca9093931fcbdb4bcd00d0eb94132, it was introduced in version v3.8 by commit 9a4c8019471386c6fb039ae9e30f5216b6b55a9e. For more details please see the references link.
Which versions are affected by GSD-2023-1000906?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000906?
No fix has been published for GSD-2023-1000906 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1000906 being exploited?
There is no known exploitation of GSD-2023-1000906 in the wild and no public exploit code.