CVE-2026-72004None▾ SunlitIn 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 ra…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < f01eec75fd372961550b928902f3a2c11fca1dafLinux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < 3d8b9b290421c3cd505fcd2f551f143f8142786aLinux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < 08b71bd92317f99642b842cfc0d30200868162fcLinux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < a02b52fe54f7b5107aefa1ce28c2f69749c57616Linux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < 45e9ac538cdff7bce656d731114a64eda85af0d7Linux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < bdc0b8bfdc142439d6708b072e8159eb515ee7b0Linux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < a7584f261e64fe14e45bdf70f343e16c1ee3a037Linux >= 09b4a4faf9d037990ac4f8110dd944b27b42d5df < 95fc02722edde02946d0d475221f2b2054d3d8baLinux 4.20Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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