CVE-2025-68726
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk29th percentile - higher than 29% of all known CVEs
Summary
In the Linux kernel, the aead crypto framework has a reqsize handling issue. Using cra_reqsize instead of crypto_aead_set_reqsize() leads to memory corruption and crashes.
Risk Assessment
This may cause system crashes when using AEAD encryption algorithms, e.g., in IPSec or other cryptographic applications.
Recommendation
Apply the patch that adds proper set_reqsize calls in the aead init function.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: crypto: aead - Fix reqsize handling Commit afddce13ce81d ("crypto: api - Add reqsize to crypto_alg") introduced cra_reqsize field in crypto_alg struct to replace type specific reqsize fields. It looks like this was introduced specifically for ahash and acomp from the commit description as subsequent commits add necessary changes in these alg frameworks. However, this is being recommended for use in all crypto algs instead of setting reqsize using crypto_*_set_reqsize(). Using cra_reqsize in aead algorithms, hence, causes memory corruptions and crashes as the underlying functions in the algorithm framework have not been updated to set the reqsize properly from cra_reqsize. [1] Add proper set_reqsize calls in the aead init function to properly initialize reqsize for these algorithms in the framework. [1]: https://gist.github.com/Pratham-T/24247446f1faf4b7843e4014d5089f6b