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CVE-2026-109976

Clevis: clevis: integer underflow in pkcs#11 data socket handler crashes daemon on unbound client connection

CVSS 3.1 4.7 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-109976

Published

A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon crashes when an AF_UNIX client connects to the data socket without a bound address, due to an integer underflow in the getpeername result handling. This causes a denial of service, preventing LUKS disk decryption from completing during boot.

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Affected versions, risk and source history

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CVE-2026-109976 · CVE overview and exploitation status

cve-program · CVE-2026-109976

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Sources read 15 Nov 18:02 UTC · 254 of 275 readable · 250 fully read · documentation 469/469 current

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