{"api_version":"1","generated_at":"2026-08-15T06:04:39+00:00","cve":"CVE-2026-68126","urls":{"html":"https://cve.report/CVE-2026-68126","api":"https://cve.report/api/cve/CVE-2026-68126.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68126","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68126"},"summary":{"title":"mac802154: hold an interface reference across the scan worker","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: hold an interface reference across the scan worker\n\nmac802154_scan_worker() captures the scanning sub-interface under RCU\nand then keeps dereferencing sdata->dev after rcu_read_unlock() and\noutside the rtnl -- in the failure traces, in\nmac802154_transmit_beacon_req() (skb->dev = sdata->dev), and in the\nend_scan cleanup. Nothing keeps that netdev alive across the worker\niteration.\n\nA concurrent DEL_INTERFACE or PHY removal can unregister the interface\nonce the worker drops the rtnl between its two drv_set_channel()\nsections. unregister_netdevice() frees the netdev asynchronously from\nnetdev_run_todo() with the rtnl already dropped, so neither holding the\nrtnl nor the per-PHY IEEE802154_IS_SCANNING flag prevents a stale worker\niteration from dereferencing the freed netdev -- a KASAN\nslab-use-after-free, reachable by racing TRIGGER_SCAN against\nDEL_INTERFACE (both CAP_NET_ADMIN).\n\nPin the netdev with netdev_hold() while the RCU read lock is still held,\nand release it at every worker exit.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:19:57","updated_at":"2026-08-10 13:19:57"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/234e5e898b713bc0b3a631b6f002897f43d046c8","name":"https://git.kernel.org/stable/c/234e5e898b713bc0b3a631b6f002897f43d046c8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b","name":"https://git.kernel.org/stable/c/59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd7110f0caa32426140ff302a209c53294ef2cfd","name":"https://git.kernel.org/stable/c/bd7110f0caa32426140ff302a209c53294ef2cfd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd4754194a706163294b6141460101b99082c8c7","name":"https://git.kernel.org/stable/c/dd4754194a706163294b6141460101b99082c8c7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5f303f622f6bb8907c405e5123a0ab0f70fb0065","name":"https://git.kernel.org/stable/c/5f303f622f6bb8907c405e5123a0ab0f70fb0065","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68126","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68126","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 57588c71177f0bfc08509c2c3a9bfe32850c0786 bd7110f0caa32426140ff302a209c53294ef2cfd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 57588c71177f0bfc08509c2c3a9bfe32850c0786 dd4754194a706163294b6141460101b99082c8c7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 57588c71177f0bfc08509c2c3a9bfe32850c0786 59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 57588c71177f0bfc08509c2c3a9bfe32850c0786 5f303f622f6bb8907c405e5123a0ab0f70fb0065 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 57588c71177f0bfc08509c2c3a9bfe32850c0786 234e5e898b713bc0b3a631b6f002897f43d046c8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc5 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac802154/scan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bd7110f0caa32426140ff302a209c53294ef2cfd","status":"affected","version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","versionType":"git"},{"lessThan":"dd4754194a706163294b6141460101b99082c8c7","status":"affected","version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","versionType":"git"},{"lessThan":"59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b","status":"affected","version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","versionType":"git"},{"lessThan":"5f303f622f6bb8907c405e5123a0ab0f70fb0065","status":"affected","version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","versionType":"git"},{"lessThan":"234e5e898b713bc0b3a631b6f002897f43d046c8","status":"affected","version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac802154/scan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc5","versionStartIncluding":"6.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: hold an interface reference across the scan worker\n\nmac802154_scan_worker() captures the scanning sub-interface under RCU\nand then keeps dereferencing sdata->dev after rcu_read_unlock() and\noutside the rtnl -- in the failure traces, in\nmac802154_transmit_beacon_req() (skb->dev = sdata->dev), and in the\nend_scan cleanup. Nothing keeps that netdev alive across the worker\niteration.\n\nA concurrent DEL_INTERFACE or PHY removal can unregister the interface\nonce the worker drops the rtnl between its two drv_set_channel()\nsections. unregister_netdevice() frees the netdev asynchronously from\nnetdev_run_todo() with the rtnl already dropped, so neither holding the\nrtnl nor the per-PHY IEEE802154_IS_SCANNING flag prevents a stale worker\niteration from dereferencing the freed netdev -- a KASAN\nslab-use-after-free, reachable by racing TRIGGER_SCAN against\nDEL_INTERFACE (both CAP_NET_ADMIN).\n\nPin the netdev with netdev_hold() while the RCU read lock is still held,\nand release it at every worker exit."}],"providerMetadata":{"dateUpdated":"2026-08-10T11:58:47.478Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/bd7110f0caa32426140ff302a209c53294ef2cfd"},{"url":"https://git.kernel.org/stable/c/dd4754194a706163294b6141460101b99082c8c7"},{"url":"https://git.kernel.org/stable/c/59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b"},{"url":"https://git.kernel.org/stable/c/5f303f622f6bb8907c405e5123a0ab0f70fb0065"},{"url":"https://git.kernel.org/stable/c/234e5e898b713bc0b3a631b6f002897f43d046c8"}],"title":"mac802154: hold an interface reference across the scan worker","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68126","datePublished":"2026-08-10T11:58:47.478Z","dateReserved":"2026-07-30T09:28:09.369Z","dateUpdated":"2026-08-10T11:58:47.478Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:19:57","lastModifiedDate":"2026-08-10 13:19:57","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68126","Ordinal":"1","Title":"mac802154: hold an interface reference across the scan worker","CVE":"CVE-2026-68126","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68126","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: hold an interface reference across the scan worker\n\nmac802154_scan_worker() captures the scanning sub-interface under RCU\nand then keeps dereferencing sdata->dev after rcu_read_unlock() and\noutside the rtnl -- in the failure traces, in\nmac802154_transmit_beacon_req() (skb->dev = sdata->dev), and in the\nend_scan cleanup. Nothing keeps that netdev alive across the worker\niteration.\n\nA concurrent DEL_INTERFACE or PHY removal can unregister the interface\nonce the worker drops the rtnl between its two drv_set_channel()\nsections. unregister_netdevice() frees the netdev asynchronously from\nnetdev_run_todo() with the rtnl already dropped, so neither holding the\nrtnl nor the per-PHY IEEE802154_IS_SCANNING flag prevents a stale worker\niteration from dereferencing the freed netdev -- a KASAN\nslab-use-after-free, reachable by racing TRIGGER_SCAN against\nDEL_INTERFACE (both CAP_NET_ADMIN).\n\nPin the netdev with netdev_hold() while the RCU read lock is still held,\nand release it at every worker exit.","Type":"Description","Title":"mac802154: hold an interface reference across the scan worker"}]}}}