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Vulnerabilities CVE-2026-64118

CVE-2026-64118

None
Open
TLP:CLEAR

qed: fix double free in qed_cxt_tables_alloc()

NVD CVE.org
Critical Infrastructure

AI Analysis

No AI analysis yet.

Description

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.

Details

EPSS Score
0.15%

4.9th percentile

Confidence
90%
Published
Jul 19, 2026
Last Modified
Jul 19, 2026
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