CVE-2026-64311

01/תיאור (מקור, אנגלית)

In the Linux kernel, the following vulnerability has been resolved: crypto: loongson - Remove broken and unused loongson-rng The loongson-rng rng_alg has several vulnerabilities, including not providing forward security, and a use-after-free bug due to the use of wait_for_completion_interruptible(). Meanwhile, the rng_alg framework doesn't really have any purpose in the first place other than to access the software algorithms crypto/drbg.c and crypto/jitterentropy.c. Hardware-specific rng_algs have no in-kernel user, and unlike hwrng there's no feed into the actual Linux RNG. As such, there's really no point to this code. There are of course other rng_alg drivers that are similarly unused, but they're similarly in the process of being phased out, e.g. https://lore.kernel.org/r/[email protected] and https://lore.kernel.org/r/[email protected] Given that, there's no point in fixing forward these vulnerabilities, and it makes much more sense to simply roll back the addition of this driver. If this platform provides TRNG (not PRNG) functionality, it could make sense to add a hwrng driver, but it would be quite different.

02/מוצרים מושפעים

linux: linux kernel

03/קישורים3

• git.kernel.org/stable/c/037ec8353711c79353b12d5634e0c9ff363a9efa Patch
• git.kernel.org/stable/c/43de8b9f01b7dd2f6ca5360c6bf2f203c02288dc Patch
• git.kernel.org/stable/c/af3d1bb9a09daf928fc3f173689fb7904d6a6d4f Patch