CVE-2026-80833: linux
Vulnerability summary
CVE-2026-80833 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 04-09-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
Risk metrics not yet published.
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
+0.01 pp
From 0.17% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu157 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
- linux-6.12< 6.12.111-1~deb12u1
Linux1 product
- linux≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < 9127d2a88c1795ddc4ba7687fea01cab1908fae1 | ≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < 64f3406ad082c00fb7a80240a24943ccb6d9a538 | ≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < 6117968fe2cdcde28ac3aa6ec814485320af4049 | ≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < a41e4ba94ad4571aa2e566baa395e6e871e0fd4f | ≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < d29ccf9eeb67d775221e49a079caa1af83427afa | ≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < 7c257a295e05ceb8f78aa3efecc4e9ce19c3313f | ≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < 8ab58786b4c63b8f1b6c522f33bb67a3c8c2791f | ≥ ac2614d721dea2ff273af19c6c5d508d58a2bb3e, < a78446ee6fae86ac8733f120e3ffce2e5d9384f5 | 5.10
3 vendors · 160 products