{"id":"CVE-2023-53643","revision":"8d8da56df82341b6a3299332d326988a","records":[{"revision":"8d8da56df82341b6a3299332d326988a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-53643","aliases":[],"title":"nvme-tcp: don't access released socket during error recovery","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: don't access released socket during error recovery\n\nWhile the error recovery work is temporarily failing reconnect attempts,\nrunning the 'nvme list' command causes a kernel NULL pointer dereference\nby calling getsockname() with a released socket.\n\nDuring error recovery work, the nvme tcp socket is released and a new one\ncreated, so it is not safe to access the socket without proper check.","state":0,"publishedAt":"2025-10-07T15:19:42.374+00:00","modifiedAt":"2026-10-15T21:41:32.662+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/nvme/host/tcp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"02c57a82c0081141abc19150beab48ef47f97f18\",\n                            \"lessThan\": \"fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"02c57a82c0081141abc19150beab48ef47f97f18\",\n                            \"lessThan\": \"d82f762db4776fa11de88018f0f5de2d5db72a72\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"02c57a82c0081141abc19150beab48ef47f97f18\",\n                            \"lessThan\": \"76d54bf20cdcc1ed7569a89885e09636e9a8d71d\",\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/nvme/host/tcp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.18\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.2.5\",\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/fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d","https://git.kernel.org/stable/c/d82f762db4776fa11de88018f0f5de2d5db72a72","https://git.kernel.org/stable/c/76d54bf20cdcc1ed7569a89885e09636e9a8d71d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53643","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53643","identifiers":["CVE-2023-53643"]},"retained":false,"historicalAffected":[]}],"coverage":[]}