{"id":"CVE-2023-54285","revision":"681db7b2cccc4f56a7f0b788d968a257","records":[{"revision":"681db7b2cccc4f56a7f0b788d968a257","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-54285","aliases":[],"title":"iomap: Fix possible overflow condition in iomap_write_delalloc_scan","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niomap: Fix possible overflow condition in iomap_write_delalloc_scan\n\nfolio_next_index() returns an unsigned long value which left shifted\nby PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead\nuse folio_pos(folio) + folio_size(folio), which does this correctly.","state":0,"publishedAt":"2025-12-30T12:23:25.77+00:00","modifiedAt":"2026-10-15T21:41:44.022+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/iomap/buffered-io.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"38be53c3fd7f4f4bd5de319a323d72f9f6beb16d\",\n                            \"lessThan\": \"0c6cf409093f307ee05114f834516730c0da5b21\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78\",\n                            \"lessThan\": \"5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78\",\n                            \"lessThan\": \"eee2d2e6ea5550118170dbd5bb1316ceb38455fb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.1.92\",\n                            \"lessThan\": \"6.1.162\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\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/iomap/buffered-io.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.162\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.5.5\",\n                            \"lessThanOrEqual\": \"6.5.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6\",\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:N/I:H/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/0c6cf409093f307ee05114f834516730c0da5b21","https://git.kernel.org/stable/c/5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240","https://git.kernel.org/stable/c/eee2d2e6ea5550118170dbd5bb1316ceb38455fb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-54285","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-54285","identifiers":["CVE-2023-54285"]},"retained":false,"historicalAffected":[]}],"coverage":[]}