{"api_version":"1","generated_at":"2026-08-06T14:12:50+00:00","cve":"CVE-2026-64598","urls":{"html":"https://cve.report/CVE-2026-64598","api":"https://cve.report/api/cve/CVE-2026-64598.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64598","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64598"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-08-06 08:16:35","updated_at":"2026-08-06 08:16:35"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a187883cc1dc784a4d32537f5d316f1b7b9ad76f","name":"https://git.kernel.org/stable/c/a187883cc1dc784a4d32537f5d316f1b7b9ad76f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/aa37f5fef78dd11cbf983269da2031e12625c56d","name":"https://git.kernel.org/stable/c/aa37f5fef78dd11cbf983269da2031e12625c56d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cad756733dc3985188983f3e2eb77e2927209099","name":"https://git.kernel.org/stable/c/cad756733dc3985188983f3e2eb77e2927209099","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/61f28012e5650c619223decdb7970e0d3162e949","name":"https://git.kernel.org/stable/c/61f28012e5650c619223decdb7970e0d3162e949","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac","name":"https://git.kernel.org/stable/c/a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64598","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64598","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d08089f649a0cfb2099c8551ac47eef0cc23fdf2 aa37f5fef78dd11cbf983269da2031e12625c56d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d08089f649a0cfb2099c8551ac47eef0cc23fdf2 cad756733dc3985188983f3e2eb77e2927209099 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d08089f649a0cfb2099c8551ac47eef0cc23fdf2 a187883cc1dc784a4d32537f5d316f1b7b9ad76f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d08089f649a0cfb2099c8551ac47eef0cc23fdf2 a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d08089f649a0cfb2099c8551ac47eef0cc23fdf2 61f28012e5650c619223decdb7970e0d3162e949 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/smb2ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"aa37f5fef78dd11cbf983269da2031e12625c56d","status":"affected","version":"d08089f649a0cfb2099c8551ac47eef0cc23fdf2","versionType":"git"},{"lessThan":"cad756733dc3985188983f3e2eb77e2927209099","status":"affected","version":"d08089f649a0cfb2099c8551ac47eef0cc23fdf2","versionType":"git"},{"lessThan":"a187883cc1dc784a4d32537f5d316f1b7b9ad76f","status":"affected","version":"d08089f649a0cfb2099c8551ac47eef0cc23fdf2","versionType":"git"},{"lessThan":"a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac","status":"affected","version":"d08089f649a0cfb2099c8551ac47eef0cc23fdf2","versionType":"git"},{"lessThan":"61f28012e5650c619223decdb7970e0d3162e949","status":"affected","version":"d08089f649a0cfb2099c8551ac47eef0cc23fdf2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/smb2ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"6.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: Fix 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."}],"providerMetadata":{"dateUpdated":"2026-08-06T07:13:52.716Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/aa37f5fef78dd11cbf983269da2031e12625c56d"},{"url":"https://git.kernel.org/stable/c/cad756733dc3985188983f3e2eb77e2927209099"},{"url":"https://git.kernel.org/stable/c/a187883cc1dc784a4d32537f5d316f1b7b9ad76f"},{"url":"https://git.kernel.org/stable/c/a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac"},{"url":"https://git.kernel.org/stable/c/61f28012e5650c619223decdb7970e0d3162e949"}],"title":"smb/client: Fix error code in smb2_aead_req_alloc()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64598","datePublished":"2026-08-06T07:13:52.716Z","dateReserved":"2026-07-19T15:36:31.799Z","dateUpdated":"2026-08-06T07:13:52.716Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-06 08:16:35","lastModifiedDate":"2026-08-06 08:16:35","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64598","Ordinal":"1","Title":"smb/client: Fix error code in smb2_aead_req_alloc()","CVE":"CVE-2026-64598","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64598","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"smb/client: Fix error code in smb2_aead_req_alloc()"}]}}}