CVE-2026-64118

CVE CVE-2026-64118EUVD EUVD-2026-45803Published 2026-07-19T15:40:17.000ZLast changed 2026-08-05T12:39:27.000ZCVSS 8.4

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux fe56b9e6a8d957d6a20729d626027f800c17a2da <a04c207f0801abdd23a169b5f902a9845059a65a; 4.4; patch: 6.1.175; patch: 5.15.210; fe56b9e6a8d957d6a20729d626027f800c17a2da <bdf678a273cadbccc347f331ae2e93ff4d14834c; patch: 6.6.142; patch: 6.18.34; patch: 7.0.11; fe56b9e6a8d957d6a20729d626027f800c17a2da <06fa8e69019fd3c41a7b0ea8c5f509c3a33dc227; patch: 6.12.92; fe56b9e6a8d957d6a20729d626027f800c17a2da <8cf5e4d2ca6b101d163c7423a426fb0aec34f7bb; fe56b9e6a8d957d6a20729d626027f800c17a2da <9fe030719bd083b766602692ee96c8c985798e3c; fe56b9e6a8d957d6a20729d626027f800c17a2da <3904b993cc17ec5d7c5d3b57dbd0b775dafb9684; fe56b9e6a8d957d6a20729d626027f800c17a2da <2bccfb8476ca5f3548afbd623dc7a6980d4e77de; patch: 0; fe56b9e6a8d957d6a20729d626027f800c17a2da <0e47fc1c9181ae029e0e35a865cbf2adcbae626c; patch: 7.1; patch: 5.10.259

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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