CVE-2025-71231
Published: February 18, 2026· Updated: Feb 23, 2026
Official Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression_mode
The local variable 'i' is initialized with -EINVAL, but the for loop
immediately overwrites it and -EINVAL is never returned.
If no empty compression mode can be found, the function would return the
out-of-bounds index IAA_COMP_MODES_MAX, which would cause an invalid
array access in add_iaa_compression_mode().
Fix both issues by returning either a valid index or -EINVAL.
Technical Analysis
CVE-2025-71231 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
Affected Vendors & Products
Exploit & PoC Resources
All References (4)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-71231 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts