{"api_version":"1","generated_at":"2026-10-31T00:16:42+00:00","cve":"CVE-2026-98168","urls":{"html":"https://cve.report/CVE-2026-98168","api":"https://cve.report/api/cve/CVE-2026-98168.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98168","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98168"},"summary":{"title":"smb: client: fix reparse buffer bounds in cifs_query_reparse_point()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix reparse buffer bounds in cifs_query_reparse_point()\n\nIn cifs_query_reparse_point(), the start >= end check before casting to\nstruct reparse_data_buffer * only ensures the start pointer is within the\nresponse. It fails to verify that there is enough space remaining for the\nfixed 8-byte header of the structure.\n\nIf a server provides a DataOffset that leaves less than 8 bytes remaining,\nthe check passes, but subsequent reads of ReparseTag and ReparseDataLength\nwill occur out-of-bounds.\n\nFix this by ensuring the remaining space is at least the size of the\nreparse_data_buffer structure before accessing its fields.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-06 09:17:58","updated_at":"2026-10-21 13:21:24"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/aa00eead258e4fe8158a3a3e2d65facf06274abd","name":"https://git.kernel.org/stable/c/aa00eead258e4fe8158a3a3e2d65facf06274abd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3d67f155fe5813cfb02a551a9a12d6ea06a902e9","name":"https://git.kernel.org/stable/c/3d67f155fe5813cfb02a551a9a12d6ea06a902e9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5f0306e731e2f46e91419eae57eee3a241c055e0","name":"https://git.kernel.org/stable/c/5f0306e731e2f46e91419eae57eee3a241c055e0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8dc5db3a0e583ea8d31d0613cefd99e93e095c3c","name":"https://git.kernel.org/stable/c/8dc5db3a0e583ea8d31d0613cefd99e93e095c3c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d1152c96a3002e3df6b9a5b007cecaa7b19b4f79","name":"https://git.kernel.org/stable/c/d1152c96a3002e3df6b9a5b007cecaa7b19b4f79","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98168","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98168","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 848d78e3625f15de09d34a562dc49a98b78a62f3 aa00eead258e4fe8158a3a3e2d65facf06274abd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 48ca7139ab7f0bbed95ff7a901ea497017769657 3d67f155fe5813cfb02a551a9a12d6ea06a902e9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 56e84c64fc257a95728ee73165456b025c48d408 d1152c96a3002e3df6b9a5b007cecaa7b19b4f79 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 56e84c64fc257a95728ee73165456b025c48d408 8dc5db3a0e583ea8d31d0613cefd99e93e095c3c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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00:15:10"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/cifssmb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"aa00eead258e4fe8158a3a3e2d65facf06274abd","status":"affected","version":"848d78e3625f15de09d34a562dc49a98b78a62f3","versionType":"git"},{"lessThan":"3d67f155fe5813cfb02a551a9a12d6ea06a902e9","status":"affected","version":"48ca7139ab7f0bbed95ff7a901ea497017769657","versionType":"git"},{"lessThan":"d1152c96a3002e3df6b9a5b007cecaa7b19b4f79","status":"affected","version":"56e84c64fc257a95728ee73165456b025c48d408","versionType":"git"},{"lessThan":"8dc5db3a0e583ea8d31d0613cefd99e93e095c3c","status":"affected","version":"56e84c64fc257a95728ee73165456b025c48d408","versionType":"git"},{"lessThan":"5f0306e731e2f46e91419eae57eee3a241c055e0","status":"affected","version":"56e84c64fc257a95728ee73165456b025c48d408","versionType":"git"},{"status":"affected","version":"c13b779d26b3702fba8f7d5fe757aba5bda85fd0","versionType":"git"},{"lessThan":"6.6.160","status":"affected","version":"6.6.94","versionType":"semver"},{"lessThan":"6.12.112","status":"affected","version":"6.12.34","versionType":"semver"},{"lessThan":"6.16","status":"affected","version":"6.15.3","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/cifssmb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.160","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.112","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.54","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.160","versionStartIncluding":"6.6.94","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"6.12.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.54","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.8","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix reparse buffer bounds in cifs_query_reparse_point()\n\nIn cifs_query_reparse_point(), the start >= end check before casting to\nstruct reparse_data_buffer * only ensures the start pointer is within the\nresponse. It fails to verify that there is enough space remaining for the\nfixed 8-byte header of the structure.\n\nIf a server provides a DataOffset that leaves less than 8 bytes remaining,\nthe check passes, but subsequent reads of ReparseTag and ReparseDataLength\nwill occur out-of-bounds.\n\nFix this by ensuring the remaining space is at least the size of the\nreparse_data_buffer structure before accessing its fields."}],"providerMetadata":{"dateUpdated":"2026-10-21T12:54:47.190Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/aa00eead258e4fe8158a3a3e2d65facf06274abd"},{"url":"https://git.kernel.org/stable/c/3d67f155fe5813cfb02a551a9a12d6ea06a902e9"},{"url":"https://git.kernel.org/stable/c/d1152c96a3002e3df6b9a5b007cecaa7b19b4f79"},{"url":"https://git.kernel.org/stable/c/8dc5db3a0e583ea8d31d0613cefd99e93e095c3c"},{"url":"https://git.kernel.org/stable/c/5f0306e731e2f46e91419eae57eee3a241c055e0"}],"title":"smb: client: fix reparse buffer bounds in cifs_query_reparse_point()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98168","datePublished":"2026-10-06T08:44:13.534Z","dateReserved":"2026-09-25T10:25:14.321Z","dateUpdated":"2026-10-21T12:54:47.190Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 09:17:58","lastModifiedDate":"2026-10-21 13:21:24","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98168","Ordinal":"1","Title":"smb: client: fix reparse buffer bounds in cifs_query_reparse_poi","CVE":"CVE-2026-98168","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98168","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix reparse buffer bounds in cifs_query_reparse_point()\n\nIn cifs_query_reparse_point(), the start >= end check before casting to\nstruct reparse_data_buffer * only ensures the start pointer is within the\nresponse. It fails to verify that there is enough space remaining for the\nfixed 8-byte header of the structure.\n\nIf a server provides a DataOffset that leaves less than 8 bytes remaining,\nthe check passes, but subsequent reads of ReparseTag and ReparseDataLength\nwill occur out-of-bounds.\n\nFix this by ensuring the remaining space is at least the size of the\nreparse_data_buffer structure before accessing its fields.","Type":"Description","Title":"smb: client: fix reparse buffer bounds in cifs_query_reparse_poi"}]}}}