{"id":"CVE-2015-9016","aliases":["DEBIAN-CVE-2015-9016","DSA-4187-1","EUVD-2015-8870","GHSA-6q4m-7h3g-6qjr","UBUNTU-CVE-2015-9016"],"status":"published","title":"In blk_mq_tag_to_rq in blk-mq.c in the upstream kernel, there is a possible use after free due to...","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.","severity":{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00143,"percentile":0.03683,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-264","CWE-362"],"published":"2018-04-05T18:00:00Z","modified":"2026-09-09T07:01:48Z","fixes":[{"ecosystem":"Debian:12","package":"linux","fixed_in":["4.2.3-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["4.2.3-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["4.2.3-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.3-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.3-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.3-1"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.16.56-1"}]}],"versions":["3.16.36-1","3.16.36-1+deb8u1","3.16.36-1+deb8u1~bpo70+1","3.16.36-1+deb8u2","3.16.36-1+deb8u2~bpo70+1","3.16.39-1","3.16.39-1+deb8u1","3.16.39-1+deb8u1~bpo70+1","3.16.39-1+deb8u1~bpo70+1+gcc4.4","3.16.39-1+deb8u2","3.16.39-1~bpo70+1","3.16.43-1","3.16.43-2","3.16.43-2+deb8u1","3.16.43-2+deb8u2","3.16.43-2+deb8u3","3.16.43-2+deb8u4","3.16.43-2+deb8u5","3.16.48-1","3.16.51-1","3.16.51-2","3.16.51-3","3.16.51-3+deb8u1","3.16.7-ckt11-1","3.16.7-ckt11-1+deb8u1","3.16.7-ckt11-1+deb8u2","3.16.7-ckt11-1+deb8u2~bpo70+1","3.16.7-ckt11-1+deb8u3","3.16.7-ckt11-1+deb8u3~bpo70+1","3.16.7-ckt11-1+deb8u4","3.16.7-ckt11-1+deb8u4~bpo70+1","3.16.7-ckt11-1+deb8u5","3.16.7-ckt11-1+deb8u6","3.16.7-ckt11-1+deb8u6~bpo70+1","3.16.7-ckt11-1~bpo70+1","3.16.7-ckt17-1","3.16.7-ckt20-1","3.16.7-ckt20-1+deb8u1","3.16.7-ckt20-1+deb8u2","3.16.7-ckt20-1+deb8u2~bpo70+1","3.16.7-ckt20-1+deb8u3","3.16.7-ckt20-1+deb8u3~bpo70+1","3.16.7-ckt20-1+deb8u4","3.16.7-ckt20-1+deb8u4~bpo70+1","3.16.7-ckt25-1","3.16.7-ckt25-1~bpo70+1","3.16.7-ckt25-2","3.16.7-ckt25-2+deb8u1","3.16.7-ckt25-2+deb8u2","3.16.7-ckt25-2+deb8u3","3.16.7-ckt25-2+deb8u3~bpo70+1","3.16.7-ckt25-2~bpo70+1","3.16.7-ckt9-2","3.16.7-ckt9-3","3.16.7-ckt9-3~deb8u1","3.16.7-ckt9-3~deb8u1~bpo70+1"],"bundled":33}],"products":[{"vendor":"google","product":"android"},{"vendor":"google inc.","product":"android"}],"references":[{"url":"https://www.debian.org/security/2018/dsa-4187","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://github.com/torvalds/linux/commit/0048b4837affd153897ed1222283492070027aa9","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://source.android.com/security/bulletin/2018-02-01","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-9016"},{"url":"https://github.com/advisories/GHSA-6q4m-7h3g-6qjr"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-9016","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-9016","tags":["report"]},{"url":"https://source.android.com/security/bulletin/2018-02-01#kernel-components","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-9016","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2015-9016","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.","status":"published","published":"2018-04-05T18:00:00Z","modified":"2024-09-17T04:28:55.719Z","updated_at":"2026-11-02T14:35:40.591596Z"}],"euvd":[{"id":"EUVD-2015-8870","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.","status":"published","published":"2018-04-05T18:00:00Z","modified":"2024-09-17T04:28:55Z","updated_at":"2026-11-03T00:28:23.116921Z"}],"ghsa":[{"id":"GHSA-6q4m-7h3g-6qjr","title":"In blk_mq_tag_to_rq in blk-mq.c in the upstream kernel, there is a possible use after free due to...","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.","status":"published","published":"2022-05-14T03:27:48Z","modified":"2023-02-02T05:08:21Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:52:43.659612Z"}],"nvd":[{"id":"CVE-2015-9016","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.","status":"published","published":"2018-04-05T18:29:00.223Z","modified":"2026-06-17T00:35:40.553Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-264","CWE-362"],"updated_at":"2026-11-02T14:03:19.244941Z"}],"osv":[{"id":"CVE-2015-9016","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.","status":"published","published":"2018-04-05T18:29:00Z","modified":"2026-04-10T03:46:36.829981Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:01.068991Z"},{"id":"DEBIAN-CVE-2015-9016","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.","status":"published","published":"2018-04-05T18:29:00.223Z","modified":"2026-09-09T07:01:48.371468209Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:27.323751Z"},{"id":"UBUNTU-CVE-2015-9016","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.","status":"withdrawn","published":"2018-04-05T18:29:00Z","modified":"2025-07-16T08:11:53.412942Z","cvss":[{"version":"3.0","score":7,"vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:11.100633Z"},{"id":"DSA-4187-1","title":"linux - security update","status":"published","published":"2018-05-01T00:00:00Z","modified":"2026-03-09T01:20:18.424235Z","updated_at":"2026-11-02T15:46:16.862196Z"}]}}