{"id":"CVE-2025-22124","revision":null,"records":[{"revision":"67040179e67547c0ac9ec10fd9159f43","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-22124","aliases":[],"title":"md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/md-bitmap: fix wrong bitmap_limit for clustermd when write sb\n\nIn clustermd, separate write-intent-bitmaps are used for each cluster\nnode:\n\n0 4k 8k 12k\n-------------------------------------------------------------------\n| idle | md super | bm super [0] + bits |\n| bm bits[0, contd] | bm super[1] + bits | bm bits[1, contd] |\n| bm super[2] + bits | bm bits [2, contd] | bm super[3] + bits |\n| bm bits [3, contd] | | |\n\nSo in node 1, pg_index in __write_sb_page() could equal to\nbitmap->storage.file_pages. Then bitmap_limit will be calculated to\n0. md_super_write() will be called with 0 size.\nThat means the first 4k sb area of node 1 will never be updated\nthrough filemap_write_page().\nThis bug causes hang of mdadm/clustermd_tests/01r1_Grow_resize.\n\nHere use (pg_index % bitmap->storage.file_pages) to make calculation\nof bitmap_limit correct.","state":0,"publishedAt":"2025-04-16T14:13:08.134+00:00","modifiedAt":"2026-10-15T21:51:58.133+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/md/md-bitmap.c\"\n ],\n \"versions\": [\n {\n \"version\": \"655cc01889fa9b65441922565cddee64af49e6d6\",\n \"lessThan\": \"5eaf57fdfa37c869e61e9908e03edd707f9145b8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ab99a87542f194f28e2364a42afbf9fb48b1c724\",\n \"lessThan\": \"60196f92bbc7901eb5cfa5d456651b87ea50a4a3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ab99a87542f194f28e2364a42afbf9fb48b1c724\",\n \"lessThan\": \"bc3a9788961631359527763d7e1fcf26554c7cb1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"ab99a87542f194f28e2364a42afbf9fb48b1c724\",\n \"lessThan\": \"6130825f34d41718c98a9b1504a79a23e379701e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5600d6013c634c2b6b6c6c55c8ecb50c3a6211f2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6.6.44\",\n \"lessThan\": \"6.6.157\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.10.3\",\n \"lessThan\": \"6.11\",\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 \"drivers/md/md-bitmap.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.11\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.11\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.157\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.46\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.2\",\n \"lessThanOrEqual\": \"6.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15\",\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/5eaf57fdfa37c869e61e9908e03edd707f9145b8","https://git.kernel.org/stable/c/60196f92bbc7901eb5cfa5d456651b87ea50a4a3","https://git.kernel.org/stable/c/bc3a9788961631359527763d7e1fcf26554c7cb1","https://git.kernel.org/stable/c/6130825f34d41718c98a9b1504a79a23e379701e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-22124","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-22124","identifiers":["CVE-2025-22124"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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