{"id":"CVE-2023-53071","title":"wifi: mt76: do not run mt76_unregister_device() on unregistered hw","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: do not run mt76_unregister_device() on unregistered hw\n\nTrying to probe a mt7921e pci card without firmware results in a\nsuccessful probe where ieee80211_re…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1c71e03afe4b457a15e50de40006b927dfc00755 < dffe86df26aee01a5fc56a175b7a7f157961e370","Linux >= 1c71e03afe4b457a15e50de40006b927dfc00755 < 2d34f27714c97a9786a30b3bb54944d6d8ed612f","Linux >= 1c71e03afe4b457a15e50de40006b927dfc00755 < 41130c32f3a18fcc930316da17f3a5f3bc326aa1","Linux 5.18"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:16:17.283781Z"},"published":"2025-05-02","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:20:58.418Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53071","references":[{"url":"https://git.kernel.org/stable/c/dffe86df26aee01a5fc56a175b7a7f157961e370"},{"url":"https://git.kernel.org/stable/c/2d34f27714c97a9786a30b3bb54944d6d8ed612f"},{"url":"https://git.kernel.org/stable/c/41130c32f3a18fcc930316da17f3a5f3bc326aa1"}],"tags":["cve.org"],"epss":0.00199,"epssPercentile":0.09818,"ingestedAt":"2026-11-05T22:38:31.763Z","slug":"CVE-2023-53071","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: do not run mt76_unregister_device() on unregistered hw\n\nTrying to probe a mt7921e pci card without firmware results in a\nsuccessful probe where ieee80211_register_hw hasn't been called. When\nremoving the driver, ieee802111_unregister_hw is called unconditionally\nleading to a kernel NULL pointer dereference.\nFix the issue running mt76_unregister_device routine just for registered\nhw.\n\n## Affected\n\n- `Linux >= 1c71e03afe4b457a15e50de40006b927dfc00755 < dffe86df26aee01a5fc56a175b7a7f157961e370`\n- `Linux >= 1c71e03afe4b457a15e50de40006b927dfc00755 < 2d34f27714c97a9786a30b3bb54944d6d8ed612f`\n- `Linux >= 1c71e03afe4b457a15e50de40006b927dfc00755 < 41130c32f3a18fcc930316da17f3a5f3bc326aa1`\n- `Linux 5.18`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}