{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64306", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.779Z", "datePublished": "2026-07-25T08:49:40.153Z", "dateUpdated": "2026-07-25T08:49:40.153Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-25T08:49:40.153Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: drbg - Fix returning success on failure in CTR_DRBG\n\ndrbg_ctr_generate() sometimes returns success when it fails, leaving the\noutput buffer uninitialized. Fix it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["crypto/drbg.c"], "versions": [{"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "074db6db03a0aaa78f05ca9d4838053713796665", "status": "affected", "versionType": "git"}, {"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "7b03312491f9fe6ba4d60c4023e7e61d2d1fed96", "status": "affected", "versionType": "git"}, {"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "75597e8774f319152744d24e0683d9393540a951", "status": "affected", "versionType": "git"}, {"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "cc42fb40171c249bb859071d81b4eb007398a0bc", "status": "affected", "versionType": "git"}, {"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "bbbac12083eff489b35d848332f0dff311131344", "status": "affected", "versionType": "git"}, {"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "23b8b188cb32e5531d0f8d3af9506f8959cb369e", "status": "affected", "versionType": "git"}, {"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "a9e886f73dd717027028bb7e3bbca93601ecdfc7", "status": "affected", "versionType": "git"}, {"version": "cde001e4c3c3625c60b68a83eb1f1c2572dee07a", "lessThan": "39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b", "status": "affected", "versionType": "git"}, {"version": "f60b0fa8bbddde66f1d197be07120264b555c84a", "status": "affected", "versionType": "git"}, {"version": "3.12.44", "lessThan": "3.13", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["crypto/drbg.c"], "versions": [{"version": "4.1", "status": "affected"}, {"version": "0", "lessThan": "4.1", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.96", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.4", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.12.96"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.18.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "7.2-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12.44"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/074db6db03a0aaa78f05ca9d4838053713796665"}, {"url": "https://git.kernel.org/stable/c/7b03312491f9fe6ba4d60c4023e7e61d2d1fed96"}, {"url": "https://git.kernel.org/stable/c/75597e8774f319152744d24e0683d9393540a951"}, {"url": "https://git.kernel.org/stable/c/cc42fb40171c249bb859071d81b4eb007398a0bc"}, {"url": "https://git.kernel.org/stable/c/bbbac12083eff489b35d848332f0dff311131344"}, {"url": "https://git.kernel.org/stable/c/23b8b188cb32e5531d0f8d3af9506f8959cb369e"}, {"url": "https://git.kernel.org/stable/c/a9e886f73dd717027028bb7e3bbca93601ecdfc7"}, {"url": "https://git.kernel.org/stable/c/39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b"}], "title": "crypto: drbg - Fix returning success on failure in CTR_DRBG", "x_generator": {"engine": "bippy-1.2.0"}}}}

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