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CVE-2026-80833

crypto: sun8i-ss - Remove crypto_rng interface

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.109, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ss - Remove crypto_rng interface Since the crypto_rng interface for hardware PRNGs is unused and is redundant with hwrng and the actual Linux RNG, it's being phased out. Most drivers for it were already removed. Go ahead and remove the sun8i-ss support which is one of the only remaining ones. As usual for crypto_rng, this driver was also buggy: its ->generate() function had a use-after-free vulnerability due to using wait_for_completion_interruptible_timeout() without handling shutting down the DMA operation if a signal is sent. Also, it had a buffer overread bug in the line 'memcpy(ctx->seed, d + dlen, ctx->slen);'. There's no point in fixing these bugs separately only to remove the code anyway, so this commit is marked with Fixes and Cc stable.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in 9127d2a88c1795ddc4ba7687fea01cab1908fae1; From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in 64f3406ad082c00fb7a80240a24943ccb6d9a538; From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in 6117968fe2cdcde28ac3aa6ec814485320af4049; From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in a41e4ba94ad4571aa2e566baa395e6e871e0fd4f; From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in d29ccf9eeb67d775221e49a079caa1af83427afa; From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in 7c257a295e05ceb8f78aa3efecc4e9ce19c3313f; From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in 8ab58786b4c63b8f1b6c522f33bb67a3c8c2791f; From ac2614d721dea2ff273af19c6c5d508d58a2bb3e · fixed in a78446ee6fae86ac8733f120e3ffce2e5d9384f5

  • Linux Linux

    5.10

  • KernelLinux

    From 5.10.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.109; From 6.13.0 · fixed in 6.18.50; From 6.19.0 · fixed in 7.2.3

References 8

git.kernel.org