{"id":"CVE-2018-20855","details":"An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.","modified":"2026-03-20T03:23:27.200005Z","published":"2019-07-26T05:15:10.423Z","related":["SUSE-SU-2019:14157-1","SUSE-SU-2019:2068-1","SUSE-SU-2019:2069-1","SUSE-SU-2019:2070-1","SUSE-SU-2019:2071-1","SUSE-SU-2019:2072-1","SUSE-SU-2019:2073-1","SUSE-SU-2019:2262-1","SUSE-SU-2019:2263-1","SUSE-SU-2019:2299-1","SUSE-SU-2019:2430-1","SUSE-SU-2019:2450-1","openSUSE-SU-2019:1923-1","openSUSE-SU-2019:1924-1"],"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20190905-0002/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html"},{"type":"ADVISORY","url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7"},{"type":"FIX","url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git","events":[{"introduced":"0"},{"fixed":"0625b4ba1a5d4703c7fb01c497bd6c156908af00"}]},{"type":"GIT","repo":"https://github.com/torvalds/linux","events":[{"introduced":"0"},{"fixed":"0625b4ba1a5d4703c7fb01c497bd6c156908af00"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git","events":[{"introduced":"0"},{"fixed":"0625b4ba1a5d4703c7fb01c497bd6c156908af00"}]},{"type":"GIT","repo":"https://github.com/torvalds/linux","events":[{"introduced":"0"},{"fixed":"0625b4ba1a5d4703c7fb01c497bd6c156908af00"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20855.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.18.7"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.1"}]},{"events":[{"introduced":"9.5"}]},{"events":[{"introduced":"0"},{"fixed":"4.18.7"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}