crypto: sun8i-ss - Remove crypto_rng interface

Summary

CVECVE-2026-80833
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-04 16:18:11 UTC
Updated2026-09-07 16:17:30 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001550000 probability, percentile 0.049980000 (date 2026-09-07)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ac2614d721dea2ff273af19c6c5d508d58a2bb3e d29ccf9eeb67d775221e49a079caa1af83427afa git Not specified
CNA Linux Linux affected ac2614d721dea2ff273af19c6c5d508d58a2bb3e 7c257a295e05ceb8f78aa3efecc4e9ce19c3313f git Not specified
CNA Linux Linux affected ac2614d721dea2ff273af19c6c5d508d58a2bb3e 8ab58786b4c63b8f1b6c522f33bb67a3c8c2791f git Not specified
CNA Linux Linux affected ac2614d721dea2ff273af19c6c5d508d58a2bb3e a78446ee6fae86ac8733f120e3ffce2e5d9384f5 git Not specified
CNA Linux Linux affected 5.10 Not specified
CNA Linux Linux unaffected 5.10 semver Not specified
CNA Linux Linux unaffected 6.12.109 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.3 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a78446ee6fae86ac8733f120e3ffce2e5d9384f5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8ab58786b4c63b8f1b6c522f33bb67a3c8c2791f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d29ccf9eeb67d775221e49a079caa1af83427afa 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7c257a295e05ceb8f78aa3efecc4e9ce19c3313f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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