{"id":"CVE-2026-64178","title":"Bluetooth: bnep: Fix UAF read of dev->name","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: Fix UAF read of dev->name\n\nbnep_add_connection() needs to keep holding the bnep_session_sem while\nreading dev->name (just like bnep_get_connlist() does…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a75bbcb10cb21acc169b785e9804f57d97873a9c","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4907596f25b1720fa948371ac5f6c1f8da10a5bc","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 915a92182e2cda9cd7d2479020a44c6eda986f7c","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fe69f634b076ae3ca81c5a5b845d9bba527036f7","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b21805258d7e926adfd455fc820a447b90da3b82","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5506aec795135cdd4cbf4e845929155663b25055","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e7578529b97e5d4e439cf8f3e637c2303015338f","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 59e932ded949fa6f0340bf7c6d7818f962fa4fd2","Linux 2.6.12"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:37:17.723299Z"},"published":"2026-07-19","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:42:25.595Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64178","references":[{"url":"https://git.kernel.org/stable/c/a75bbcb10cb21acc169b785e9804f57d97873a9c"},{"url":"https://git.kernel.org/stable/c/4907596f25b1720fa948371ac5f6c1f8da10a5bc"},{"url":"https://git.kernel.org/stable/c/915a92182e2cda9cd7d2479020a44c6eda986f7c"},{"url":"https://git.kernel.org/stable/c/fe69f634b076ae3ca81c5a5b845d9bba527036f7"},{"url":"https://git.kernel.org/stable/c/b21805258d7e926adfd455fc820a447b90da3b82"},{"url":"https://git.kernel.org/stable/c/5506aec795135cdd4cbf4e845929155663b25055"},{"url":"https://git.kernel.org/stable/c/e7578529b97e5d4e439cf8f3e637c2303015338f"},{"url":"https://git.kernel.org/stable/c/59e932ded949fa6f0340bf7c6d7818f962fa4fd2"}],"tags":["cve.org"],"epss":0.00249,"epssPercentile":0.15098,"ingestedAt":"2026-10-16T17:24:46.808Z","slug":"CVE-2026-64178","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: Fix UAF read of dev->name\n\nbnep_add_connection() needs to keep holding the bnep_session_sem while\nreading dev->name (just like bnep_get_connlist() does); otherwise the\nbnep_session() thread can concurrently free the net_device, which can for\nexample be triggered by a concurrent bnep_del_connection().\n\n(This UAF is fairly uninteresting from a security perspective;\ncalling bnep_add_connection() requires passing a capable(CAP_NET_ADMIN)\ncheck. It also requires completely tearing down a netdev during a fairly\ntight race window.)\n\n## Affected\n\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a75bbcb10cb21acc169b785e9804f57d97873a9c`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4907596f25b1720fa948371ac5f6c1f8da10a5bc`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 915a92182e2cda9cd7d2479020a44c6eda986f7c`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fe69f634b076ae3ca81c5a5b845d9bba527036f7`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b21805258d7e926adfd455fc820a447b90da3b82`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5506aec795135cdd4cbf4e845929155663b25055`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e7578529b97e5d4e439cf8f3e637c2303015338f`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 59e932ded949fa6f0340bf7c6d7818f962fa4fd2`\n- `Linux 2.6.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}