{"id":"CVE-2022-49743","revision":null,"records":[{"revision":"e1b5a7458e634ce4989a125f6712c01b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2022-49743","aliases":[],"title":"ovl: Use \"buf\" flexible array for memcpy() destination","description":"In the Linux kernel, the following vulnerability has been resolved:\n\novl: Use \"buf\" flexible array for memcpy() destination\n\nThe \"buf\" flexible array needs to be the memcpy() destination to avoid\nfalse positive run-time warning from the recent FORTIFY_SOURCE\nhardening:\n\n memcpy: detected field-spanning write (size 93) of single field \"&fh->fb\"\n at fs/overlayfs/export.c:799 (size 21)","state":0,"publishedAt":"2025-03-27T16:42:54.289+00:00","modifiedAt":"2026-10-15T21:21:07.99+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 \"fs/overlayfs/export.c\",\n \"fs/overlayfs/overlayfs.h\"\n ],\n \"versions\": [\n {\n \"version\": \"cbe7fba8edfc8cb8e621599e376f8ac5c224fa72\",\n \"lessThan\": \"012cdef22000f3104e4fa8224ad29fde509b8caf\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cbe7fba8edfc8cb8e621599e376f8ac5c224fa72\",\n \"lessThan\": \"a77141a06367825d639ac51b04703d551163e36c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cbe7fba8edfc8cb8e621599e376f8ac5c224fa72\",\n \"lessThan\": \"07a96977b2f462337a9121302de64277b8747ab1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cbe7fba8edfc8cb8e621599e376f8ac5c224fa72\",\n \"lessThan\": \"cf8aa9bf97cadf85745506c6a3e244b22c268d63\",\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 \"fs/overlayfs/export.c\",\n \"fs/overlayfs/overlayfs.h\"\n ],\n \"versions\": [\n {\n \"version\": \"5.5\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.5\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.248\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.93\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.11\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/012cdef22000f3104e4fa8224ad29fde509b8caf","https://git.kernel.org/stable/c/a77141a06367825d639ac51b04703d551163e36c","https://git.kernel.org/stable/c/07a96977b2f462337a9121302de64277b8747ab1","https://git.kernel.org/stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-49743","license":"CVE Program Terms of Use","key":"cve-program:CVE-2022-49743","identifiers":["CVE-2022-49743"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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