{"schema":"threatline.record/2","record":{"id":"CVE-2026-99010","aliases":[],"summary":"Bluetooth: RFCOMM: free the skb when the DLC has no owner","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: free the skb when the DLC has no owner\n\nrfcomm_recv_data() hands the skb to d->data_ready() and returns 0\nwithout freeing it, so the callback owns the skb from that point on.\nThe tty implementation frees it when the DLC has been detached from its\ndevice:\n\n  static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc,\n                                    struct sk_buff *skb)\n  {\n          struct rfcomm_dev *dev = dlc->owner;\n\n          if (!dev) {\n                  kfree_skb(skb);\n                  return;\n          }\n\nThe socket implementation returns without freeing it, and the skb is\nleaked.\n\nA connected DLC can have no owner: rfcomm_sock_destruct() clears\nd->owner, while the DLC itself stays on the session until it is closed.\nData frames that arrive in that window still find d->state ==\nBT_CONNECTED in rfcomm_recv_data() and are handed to the callback, one\nleaked skb each.\n\nThe leak does not stop on its own either.  The remote runs out of\ncredits only once RFCOMM_RX_THROTTLED is set, and for a socket the only\nplace that sets it is rfcomm_sk_data_ready() itself, below the return.\nrfcomm_process_dlcs() keeps granting credits, so the remote keeps\nsending and the leak keeps growing.\n\nFree the skb, as the tty side does.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99010","source_modified_at":"2026-10-23T12:20:35.485Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c3f76b025cbbb0ab47310dbe7de18092d89f2a99","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"4f46de658ce61968aef5ea7ae809d1c180330544","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"b8814161b14c610b7a09527433301d8ad8180aef","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"9d1afbf60ed53c5b051cd124153e0ae3078c8b93","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99010","source_modified_at":"2026-10-23T12:20:35.485Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.57","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.11","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99010","source_modified_at":"2026-10-23T12:20:35.485Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux","ecosystem":null},"version":"4f46de658ce61968aef5ea7ae809d1c180330544","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99010","source_modified_at":"2026-10-23T12:20:35.485Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux","ecosystem":null},"version":"9d1afbf60ed53c5b051cd124153e0ae3078c8b93","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-23T12:20:35.485Z","modified_at":"2026-10-23T12:20:35.485Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-99010","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T12:20:35.485Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/a54ce160e3ef7e50ec94e0ac4131c3d0f9f739b9"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c3f76b025cbbb0ab47310dbe7de18092d89f2a99"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4f46de658ce61968aef5ea7ae809d1c180330544"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/b8814161b14c610b7a09527433301d8ad8180aef"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9d1afbf60ed53c5b051cd124153e0ae3078c8b93"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T12:20:35.485Z","content_hash":"b7a9a7af70d4dfb01ed08f3440e41e5636d82ac0db44eda540d24549a79abf33"}}