CVE-2025-21789 Information

Description

In the Linux kernel the following vulnerability has been resolved:

LoongArch: csum: Fix OoB access in IP checksum code for negative lengths

Commit 69e3a6aa6be2 (\LoongArch: Add checksum optimization for 64-bit system) would cause an undefined shift and an out-of-bounds read.

Commit 8bd795fedb84 (rm64: csum: Fix OoB access in IP checksum code for negative lengths) fixes the same issue on ARM64.

Reference

https://git.kernel.org/stable/c/6287f1a8c16138c2ec750953e35039634018c84a https://git.kernel.org/stable/c/964a8895704a22efc06a2a3276b624a5ae985a06 https://git.kernel.org/stable/c/9f15a8df542c0f08732a67d1a14ee7c22948fb97 https://git.kernel.org/stable/c/d6508ffff32b44b6d0de06704034e4eef1c307a7