VulnerabilityPublished 17 Sep 2026Updated 19 Oct 2026

CVE-2026-93155: Linux kernel · crypto: keembay – Fix AEAD unregister count in error path

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in e264401ce4776a288524e5b87593d4d864147115 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in e264401ce4776a288524e5b87593d4d864147115, a3217fe7998622728a53dff405615e0971949eaf, 5607b101d86cbee8dd1ffab784495c880ca73383 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 88574332451380f4b51f6ca88ab9810e714bfb9b, < e264401ce4776a288524e5b87593d4d864147115	Fixed in e264401ce4776a288524e5b87593d4d864147115
LinuxLinux	Affected ≥ 88574332451380f4b51f6ca88ab9810e714bfb9b, < a3217fe7998622728a53dff405615e0971949eaf	Fixed in a3217fe7998622728a53dff405615e0971949eaf
LinuxLinux	Affected ≥ 88574332451380f4b51f6ca88ab9810e714bfb9b, < 5607b101d86cbee8dd1ffab784495c880ca73383	Fixed in 5607b101d86cbee8dd1ffab784495c880ca73383
LinuxLinux	Affected ≥ 88574332451380f4b51f6ca88ab9810e714bfb9b, < 27ec91c29ee155cc507b2f56221fc6fab65dbb51	Fixed in 27ec91c29ee155cc507b2f56221fc6fab65dbb51
LinuxLinux	Affected ≥ 88574332451380f4b51f6ca88ab9810e714bfb9b, < 5bbb726d27ff6dff750264e51aa665538394d0f8	Fixed in 5bbb726d27ff6dff750264e51aa665538394d0f8
LinuxLinux	Affected =5.11	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: keembay - Fix AEAD unregister count in error path register_aes_algs() registers the AEAD algorithms before registering the skcipher algorithms. If skcipher registration fails, the function unwinds the earlier AEAD registration with crypto_engine_unregister_aeads(), but it passes ARRAY_SIZE(algs), which is the skcipher table size. Use ARRAY_SIZE(algs_aead) for the AEAD unwind path so the unregister helper iterates over the same table that was registered. Also clarify the nearby comment: the crypto registration helpers clean up algorithms registered within the same call, while this function must still unwind earlier successful registration steps.

References

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