HIGHVulnerability

CVE-2026-64118

In the Linux kernel, the following vulnerability has been resolved: qed: fix double free in qed_cxt_tables_alloc() If one of the later PF or VF CID bitmap allocations fails, qed_cid_map_alloc() jumps to cid_map_fail and frees the previously allocated CID bitmaps before returning an error. qed_cxt_tables_alloc() then calls qed_cxt_mngr_free(), which invokes qed_cid_map_free() again. Fix this by setting each CID bitmap pointer to NULL after bitmap_free() to avoid double free. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc3. Runtime reproduction was not attempted because exercising the failing allocation path requires device-specific setup.

Properties

severity
HIGH
score
8.4
cve_id
CVE-2026-64118
vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
published_at
2026-07-19T16:17:53.320
last_modified
2026-08-13T15:12:01.917

Related Entities (7)

HAS_WEAKNESS (1)

[Weakness]Double Free

DESCRIBED_BY (1)

[Source]NVD

AFFECTS_PRODUCT (5)

[Product]
[Product]
[Product]
[Product]
[Product]

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CVE-2026-64118 — Ninja Signal Threat Intelligence | Ninja Signal