CVE-2026-80833

crypto: sun8i-ss - Remove crypto_rng interface

State: Published
Severity: Not scored
Published: Sep 4, 2026
Updated: Oct 19, 2026
Reserved: Aug 26, 2026

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 9127d2a88c1795ddc4ba7687fea01cab1908fae1Affected ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 64f3406ad082c00fb7a80240a24943ccb6d9a538Affected ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 6117968fe2cdcde28ac3aa6ec814485320af4049Affected ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before a41e4ba94ad4571aa2e566baa395e6e871e0fd4fAffected ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before d29ccf9eeb67d775221e49a079caa1af83427afaAffected ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 7c257a295e05ceb8f78aa3efecc4e9ce19c3313fAffected ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 8ab58786b4c63b8f1b6c522f33bb67a3c8c2791fAffected ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before a78446ee6fae86ac8733f120e3ffce2e5d9384f5Affected
LinuxLinux	5.10Affected before 5.10Not affected 5.10.271 through 5.10.Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.3 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 9127d2a88c1795ddc4ba7687fea01cab1908fae1Affected
ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 64f3406ad082c00fb7a80240a24943ccb6d9a538Affected
ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 6117968fe2cdcde28ac3aa6ec814485320af4049Affected
ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before a41e4ba94ad4571aa2e566baa395e6e871e0fd4fAffected
ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before d29ccf9eeb67d775221e49a079caa1af83427afaAffected
ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 7c257a295e05ceb8f78aa3efecc4e9ce19c3313fAffected
ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before 8ab58786b4c63b8f1b6c522f33bb67a3c8c2791fAffected
ac2614d721dea2ff273af19c6c5d508d58a2bb3e to before a78446ee6fae86ac8733f120e3ffce2e5d9384f5Affected

LinuxLinux

5.10Affected
before 5.10Not affected
5.10.271 through 5.10.*Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.3 through 7.2.*Not affected
7.3 and laterNot affected

References

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