{"id":"CVE-2026-52967","revision":null,"records":[{"revision":"d016eb1e25e0481f9b32a14f2f380126","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-52967","aliases":[],"title":"smb/client: fix possible infinite loop and oob read in symlink_data()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: fix possible infinite loop and oob read in symlink_data()\n\nOn 32-bit architectures, the infinite loop is as follows:\n\n len = p->ErrorDataLength == 0xfffffff8\n u8 *next = p->ErrorContextData + len\n next == p\n\nOn 32-bit architectures, the out-of-bounds read is as follows:\n\n len = p->ErrorDataLength == 0xfffffff0\n u8 *next = p->ErrorContextData + len\n next == (u8 *)p - 8","state":0,"publishedAt":"2026-06-24T16:28:46.661+00:00","modifiedAt":"2026-10-19T19:47:10.711+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/smb/client/smb2file.c\"\n ],\n \"versions\": [\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"1cfa2d59f669db28d6292d10ff87ca6837c781b0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"b41598bf54b3fe528994e573df6008f8f4d0a4f4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"cd4b9b662f0fb9aa97ee6bf9034eca76fc6cab23\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"97a05b0ae9ea5ec052be2eef0f9cc7ce03501bbb\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"1b9331b16b0ed9414dcf7583d8134bdfeb117aae\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"76894f3e2f71177747b8b4763fb180e800279585\",\n \"lessThan\": \"7d9a7f1f96cd617ee9e75bb22217c709038e26b8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"2d046892a493d9760c35fdaefc3017f27f91b621\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6.0.16\",\n \"lessThan\": \"6.1\",\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/smb/client/smb2file.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\": \"6.1.175\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.141\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.91\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.33\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0.10\",\n \"lessThanOrEqual\": \"7.0.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1\",\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:R/S:U/C:H/I:N/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/1cfa2d59f669db28d6292d10ff87ca6837c781b0","https://git.kernel.org/stable/c/b41598bf54b3fe528994e573df6008f8f4d0a4f4","https://git.kernel.org/stable/c/cd4b9b662f0fb9aa97ee6bf9034eca76fc6cab23","https://git.kernel.org/stable/c/97a05b0ae9ea5ec052be2eef0f9cc7ce03501bbb","https://git.kernel.org/stable/c/1b9331b16b0ed9414dcf7583d8134bdfeb117aae","https://git.kernel.org/stable/c/7d9a7f1f96cd617ee9e75bb22217c709038e26b8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-52967","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-52967","identifiers":["CVE-2026-52967"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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