{"id":"CVE-2023-54234","revision":"700643455bb44e3a8cfa8ae12ff56772","records":[{"revision":"700643455bb44e3a8cfa8ae12ff56772","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-54234","aliases":[],"title":"scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization\n\nCommit c1af985d27da (\"scsi: mpi3mr: Add Event acknowledgment logic\")\nintroduced an array mrioc->evtack_cmds but initialization of the array\nelements was missed. They are just zero cleared. The function\nmpi3mr_complete_evt_ack() refers host_tag field of the elements. Due to the\nzero value of the host_tag field, the function calls clear_bit() for\nmrico->evtack_cmds_bitmap with wrong bit index. This results in memory\naccess to invalid address and \"BUG: KASAN: use-after-free\". This BUG was\nobserved at eHBA-9600 firmware update to version 8.3.1.0. To fix it, add\nthe missing initialization of mrioc->evtack_cmds.","state":0,"publishedAt":"2025-12-30T12:11:25.021+00:00","modifiedAt":"2026-10-15T21:41:42.603+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/scsi/mpi3mr/mpi3mr_os.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c1af985d27da2d530c22604644e9025810f57d7c\",\n                            \"lessThan\": \"4e0dfdb48a824deac3dfbc67fb856ef2aee13529\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1af985d27da2d530c22604644e9025810f57d7c\",\n                            \"lessThan\": \"67989091e11a974003ddf2ec39bc613df8eadd83\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1af985d27da2d530c22604644e9025810f57d7c\",\n                            \"lessThan\": \"e39ea831ebad4ab15c4748cb62a397a8abcca36e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/scsi/mpi3mr/mpi3mr_os.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.17\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.17\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.16\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.2.3\",\n                            \"lessThanOrEqual\": \"6.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/4e0dfdb48a824deac3dfbc67fb856ef2aee13529","https://git.kernel.org/stable/c/67989091e11a974003ddf2ec39bc613df8eadd83","https://git.kernel.org/stable/c/e39ea831ebad4ab15c4748cb62a397a8abcca36e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-54234","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-54234","identifiers":["CVE-2023-54234"]},"retained":false,"historicalAffected":[]}],"coverage":[]}