{"id":"CVE-2020-12657","details":"An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.","modified":"2026-03-15T22:32:29.385591Z","published":"2020-05-05T07:15:10.993Z","related":["SUSE-SU-2020:1587-1","SUSE-SU-2020:1599-1","SUSE-SU-2020:1602-1","SUSE-SU-2020:1603-1","SUSE-SU-2020:1604-1","SUSE-SU-2020:1605-1","SUSE-SU-2020:1663-1","SUSE-SU-2020:2156-1","SUSE-SU-2020:2478-1","SUSE-SU-2020:2487-1","openSUSE-SU-2020:0801-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/4367-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/4369-1/"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html"},{"type":"WEB","url":"https://usn.ubuntu.com/4368-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/4363-1/"},{"type":"ADVISORY","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20200608-0001/"},{"type":"FIX","url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9"},{"type":"FIX","url":"https://patchwork.kernel.org/patch/11447049/"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12657.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.6.5"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}