{"id":"CVE-2015-9016","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-9016","generatedAt":"2026-10-27T19:50:02.805Z","title":"In blk_mq_tag_to_rq in blk-mq.c in the upstream kernel, there is a possible use after free due to a race condition when a request has been previously freed by blk_mq_complete_request.","description":"In blk_mq_tag_to_rq in blk-mq.c in the upstream kernel, there is a possible use after free due to a race condition when a request has been previously freed by blk_mq_complete_request. This could lead to local escalation of privilege. Product: Android. Versions: Android kernel. Android ID: A-63083046.","published":"2018-04-05T18:29:00.000Z","lastModified":"2026-06-17T00:35:41.000Z","status":"Modified","sourceIdentifier":"security@android.com","cvss":{"version":"3.0","score":7,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-264","CWE-362"],"affected":["google/android"],"epss":{"score":0.00143,"percentile":0.03622,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/torvalds/linux/commit/0048b4837affd153897ed1222283492070027aa9","tags":["Patch","Vendor Advisory"],"source":"security@android.com"},{"url":"https://source.android.com/security/bulletin/2018-02-01","tags":["Patch","Vendor Advisory"],"source":"security@android.com"},{"url":"https://www.debian.org/security/2018/dsa-4187","source":"security@android.com"},{"url":"https://github.com/torvalds/linux/commit/0048b4837affd153897ed1222283492070027aa9","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://source.android.com/security/bulletin/2018-02-01","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4187","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-9016","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}