{"id":"CVE-2026-64598","revision":null,"records":[{"revision":"a04b3739a6e14df8ac00a2bdf66dcd07","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64598","aliases":[],"title":"smb/client: Fix error code in smb2_aead_req_alloc()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: Fix error code in smb2_aead_req_alloc()\n\nThe \"*num_sgs\" variable is a u32 so \"ERR_PTR(*num_sgs)\" doesn't work.\nWe would have to do something similar to the previous line where it's\ncast to int and then long. However, it's simpler to store the return in\nan int ret variable.\n\nThis bug would eventually result in a crash when dereference the invalid\nerror pointer.","state":0,"publishedAt":"2026-08-06T07:13:52.716+00:00","modifiedAt":"2026-10-19T20:48:43.611+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/smb2ops.c\"\n ],\n \"versions\": [\n {\n \"version\": \"d08089f649a0cfb2099c8551ac47eef0cc23fdf2\",\n \"lessThan\": \"aa37f5fef78dd11cbf983269da2031e12625c56d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d08089f649a0cfb2099c8551ac47eef0cc23fdf2\",\n \"lessThan\": \"cad756733dc3985188983f3e2eb77e2927209099\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d08089f649a0cfb2099c8551ac47eef0cc23fdf2\",\n \"lessThan\": \"a187883cc1dc784a4d32537f5d316f1b7b9ad76f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d08089f649a0cfb2099c8551ac47eef0cc23fdf2\",\n \"lessThan\": \"a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d08089f649a0cfb2099c8551ac47eef0cc23fdf2\",\n \"lessThan\": \"61f28012e5650c619223decdb7970e0d3162e949\",\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/smb/client/smb2ops.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.3\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.3\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.145\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.96\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.39\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.4\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\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:R/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/aa37f5fef78dd11cbf983269da2031e12625c56d","https://git.kernel.org/stable/c/cad756733dc3985188983f3e2eb77e2927209099","https://git.kernel.org/stable/c/a187883cc1dc784a4d32537f5d316f1b7b9ad76f","https://git.kernel.org/stable/c/a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac","https://git.kernel.org/stable/c/61f28012e5650c619223decdb7970e0d3162e949"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64598","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64598","identifiers":["CVE-2026-64598"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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