High 8.4Published Jul 19, 2026

CVE-2026-64118qed: fix double free in qed_cxt_tables_alloc()

Updated under an hour ago (2026-10-19 07:30 UTC)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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.

CVSS: 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from fe56b9e6a8d957d6a20729d626027f800c17a2da before 9fe030719bd083b766602692ee96c8c985798e3c; from fe56b9e6a8d957d6a20729d626027f800c17a2da before 06fa8e69019fd3c41a7b0ea8c5f509c3a33dc227; from fe56b9e6a8d957d6a20729d626027f800c17a2da before 8cf5e4d2ca6b101d163c7423a426fb0aec34f7bb; from fe56b9e6a8d957d6a20729d626027f800c17a2da before 3904b993cc17ec5d7c5d3b57dbd0b775dafb9684; from fe56b9e6a8d957d6a20729d626027f800c17a2da before bdf678a273cadbccc347f331ae2e93ff4d14834c; from fe56b9e6a8d957d6a20729d626027f800c17a2da before 0e47fc1c9181ae029e0e35a865cbf2adcbae626c; from fe56b9e6a8d957d6a20729d626027f800c17a2da before a04c207f0801abdd23a169b5f902a9845059a65a; from fe56b9e6a8d957d6a20729d626027f800c17a2da before 2bccfb8476ca5f3548afbd623dc7a6980d4e77de	CNA record
linux linux_kernel linux:linux_kernel	from 4.4 before 5.10.259; from 5.11 before 5.15.210; from 5.16 before 6.1.175; from 6.2 before 6.6.142; from 6.7 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11; 7.1; and 3 more ranges	NVD

References

https://git.kernel.org/stable/c/9fe030719bd083b766602692ee96c8c985798e3cpatch
https://git.kernel.org/stable/c/06fa8e69019fd3c41a7b0ea8c5f509c3a33dc227patch
https://git.kernel.org/stable/c/8cf5e4d2ca6b101d163c7423a426fb0aec34f7bbpatch
https://git.kernel.org/stable/c/3904b993cc17ec5d7c5d3b57dbd0b775dafb9684patch
https://git.kernel.org/stable/c/bdf678a273cadbccc347f331ae2e93ff4d14834cpatch
https://git.kernel.org/stable/c/0e47fc1c9181ae029e0e35a865cbf2adcbae626cpatch
https://git.kernel.org/stable/c/a04c207f0801abdd23a169b5f902a9845059a65apatch
https://git.kernel.org/stable/c/2bccfb8476ca5f3548afbd623dc7a6980d4e77depatch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.