CVE-2026-81666

01/תיאור (מקור, אנגלית)

An integer overflow was found in Corosync's handling of membership commit token messages. The length-validation check for these messages can be bypassed on 32-bit systems due to an integer overflow in the calculation of the expected message length, allowing a crafted network packet to trigger an out-of-bounds memory access that crashes the Corosync daemon. This results in a denial of service for the affected cluster node. The overflow does not occur on 64-bit systems, where the length calculation is correctly performed in 64-bit arithmetic.

02/קישורים2

• access.redhat.com/security/cve/CVE-2026-81666
• bugzilla.redhat.com/show_bug.cgi?id=2524923