PT-2026-61435 · Linux+1 · Linux Kernel+1

CVE-2026-64118

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Published

2026-07-19

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Updated

2026-09-07

CVSS v3.1

8.4

High

VectorAV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.1-rc3
Description A double free issue exists in the qed cxt tables alloc() function. When a PF or VF CID bitmap allocation fails, qed cid map alloc() triggers a jump to cid map fail and frees previously allocated CID bitmaps. Subsequently, qed cxt tables alloc() calls qed cxt mngr free(), which invokes qed cid map free() a second time on the same memory.
Recommendations Update the Linux kernel to version 7.1-rc3 or later.

Exploit

Fix

Double Free

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Weakness Enumeration

Related Identifiers

CVE-2026-64118
OESA-2026-3303
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1
USN-8729-1

Affected Products

Linux Kernel
Ubuntu