{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68126","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-30T09:28:09.369Z","datePublished":"2026-08-10T11:58:47.478Z","dateUpdated":"2026-08-17T04:59:17.559Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T04:59:17.559Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac802154/scan.c"],"versions":[{"version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","lessThan":"bd7110f0caa32426140ff302a209c53294ef2cfd","status":"affected","versionType":"git"},{"version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","lessThan":"dd4754194a706163294b6141460101b99082c8c7","status":"affected","versionType":"git"},{"version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","lessThan":"59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b","status":"affected","versionType":"git"},{"version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","lessThan":"5f303f622f6bb8907c405e5123a0ab0f70fb0065","status":"affected","versionType":"git"},{"version":"57588c71177f0bfc08509c2c3a9bfe32850c0786","lessThan":"234e5e898b713bc0b3a631b6f002897f43d046c8","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac802154/scan.c"],"versions":[{"version":"6.3","status":"affected"},{"version":"0","lessThan":"6.3","status":"unaffected","versionType":"semver"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.2"}]}]}],"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"}}}}