In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: fix memory leak in ieee80211_register_hw()

If kmemdup() fails while copying supported band structures, the error
path jumps to fail_rate. This skips rate_control_deinitialize() and
leaks the initialized local->rate_ctrl.

Fix this by adding a fail_band label that shares the rate-control cleanup
path before falling through to the remaining teardown.

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-rc7.

An x86_64 allyesconfig build showed no new warnings. As we do not have a
suitable mac80211 device/driver combination to test with, no runtime
testing was able to be performed.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/08b71bd92317f99642b842cfc0d30200868162fc cve-icon cve-icon
https://git.kernel.org/stable/c/3d8b9b290421c3cd505fcd2f551f143f8142786a cve-icon cve-icon
https://git.kernel.org/stable/c/45e9ac538cdff7bce656d731114a64eda85af0d7 cve-icon cve-icon
https://git.kernel.org/stable/c/95fc02722edde02946d0d475221f2b2054d3d8ba cve-icon cve-icon
https://git.kernel.org/stable/c/a02b52fe54f7b5107aefa1ce28c2f69749c57616 cve-icon cve-icon
https://git.kernel.org/stable/c/a7584f261e64fe14e45bdf70f343e16c1ee3a037 cve-icon cve-icon
https://git.kernel.org/stable/c/bdc0b8bfdc142439d6708b072e8159eb515ee7b0 cve-icon cve-icon
https://git.kernel.org/stable/c/f01eec75fd372961550b928902f3a2c11fca1daf cve-icon cve-icon
History

Sat, 15 Aug 2026 08:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix memory leak in ieee80211_register_hw() If kmemdup() fails while copying supported band structures, the error path jumps to fail_rate. This skips rate_control_deinitialize() and leaks the initialized local->rate_ctrl. Fix this by adding a fail_band label that shares the rate-control cleanup path before falling through to the remaining teardown. 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-rc7. An x86_64 allyesconfig build showed no new warnings. As we do not have a suitable mac80211 device/driver combination to test with, no runtime testing was able to be performed.
Title wifi: mac80211: fix memory leak in ieee80211_register_hw()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-15T05:51:35.363Z

Reserved: 2026-08-09T03:40:39.898Z

Link: CVE-2026-72004

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:20:58.987

Modified: 2026-08-15T06:20:58.987

Link: CVE-2026-72004

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-15T07:45:04Z

Weaknesses