{"api_version":"1","generated_at":"2026-09-17T20:26:13+00:00","cve":"CVE-2026-93159","urls":{"html":"https://cve.report/CVE-2026-93159","api":"https://cve.report/api/cve/CVE-2026-93159.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-93159","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-93159"},"summary":{"title":"crypto: atmel-sha204a - fix heap info leak on I2C transfer failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: atmel-sha204a - fix heap info leak on I2C transfer failure\n\nThe nonblocking RNG path allocates a work_data structure to track the\nstate of an in-flight asynchronous I2C request. This pointer is stored\nin rng->priv and later consumed by the read path once the transaction\ncompletes.\n\nIf the underlying I2C transfer fails, the completion callback is invoked\nwith a non-zero status. In this case, the allocated work_data is not\nusable for producing RNG output and must not remain associated with the\nhwrng state.\n\nPreviously, the failure path only logged a warning but left the pointer\nstate uncleared, which can result in subsequent read attempts observing\nstale state and interpreting it as valid completion data.\n\nFix this by freeing the pending work_data. The I2C transaction reports\nan error. This ensures that failed requests do not leave residual state\nbehind that could be interpreted as valid RNG data on later reads.\nClearing rng->priv is done at the subsequent call to nonblocking read.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:18:11","updated_at":"2026-09-17 17:18:11"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/72bbf11ba14bd7d5fbf31a1ec42fff608b657f74","name":"https://git.kernel.org/stable/c/72bbf11ba14bd7d5fbf31a1ec42fff608b657f74","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/28cc179252347718f97045dd5ea74165609dbd7d","name":"https://git.kernel.org/stable/c/28cc179252347718f97045dd5ea74165609dbd7d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f4d347fb1309b69ea6f817a17e6b2893c8d754b7","name":"https://git.kernel.org/stable/c/f4d347fb1309b69ea6f817a17e6b2893c8d754b7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/94abda77b57a35b82bba0365bad072d94d67ffe9","name":"https://git.kernel.org/stable/c/94abda77b57a35b82bba0365bad072d94d67ffe9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a430b5b6d2ddd2b266330f8507a655be1148347d","name":"https://git.kernel.org/stable/c/a430b5b6d2ddd2b266330f8507a655be1148347d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bcac9052e19490231ff6e0678a06bd2fcf8db3af","name":"https://git.kernel.org/stable/c/bcac9052e19490231ff6e0678a06bd2fcf8db3af","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0d6db386133d9230befb77967bbf130443964860","name":"https://git.kernel.org/stable/c/0d6db386133d9230befb77967bbf130443964860","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4e76d85e505b7451925efbcd67c015e8c2440c68","name":"https://git.kernel.org/stable/c/4e76d85e505b7451925efbcd67c015e8c2440c68","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93159","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93159","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 a430b5b6d2ddd2b266330f8507a655be1148347d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 4e76d85e505b7451925efbcd67c015e8c2440c68 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 bcac9052e19490231ff6e0678a06bd2fcf8db3af git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 28cc179252347718f97045dd5ea74165609dbd7d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 0d6db386133d9230befb77967bbf130443964860 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 f4d347fb1309b69ea6f817a17e6b2893c8d754b7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 94abda77b57a35b82bba0365bad072d94d67ffe9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected da001fb651b00e1deeaf24767dd691ae8152a4f5 72bbf11ba14bd7d5fbf31a1ec42fff608b657f74 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.270 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-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":["drivers/crypto/atmel-sha204a.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a430b5b6d2ddd2b266330f8507a655be1148347d","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"},{"lessThan":"4e76d85e505b7451925efbcd67c015e8c2440c68","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"},{"lessThan":"bcac9052e19490231ff6e0678a06bd2fcf8db3af","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"},{"lessThan":"28cc179252347718f97045dd5ea74165609dbd7d","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"},{"lessThan":"0d6db386133d9230befb77967bbf130443964860","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"},{"lessThan":"f4d347fb1309b69ea6f817a17e6b2893c8d754b7","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"},{"lessThan":"94abda77b57a35b82bba0365bad072d94d67ffe9","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"},{"lessThan":"72bbf11ba14bd7d5fbf31a1ec42fff608b657f74","status":"affected","version":"da001fb651b00e1deeaf24767dd691ae8152a4f5","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/crypto/atmel-sha204a.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.3"},{"lessThan":"5.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.270","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.270","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: atmel-sha204a - fix heap info leak on I2C transfer failure\n\nThe nonblocking RNG path allocates a work_data structure to track the\nstate of an in-flight asynchronous I2C request. This pointer is stored\nin rng->priv and later consumed by the read path once the transaction\ncompletes.\n\nIf the underlying I2C transfer fails, the completion callback is invoked\nwith a non-zero status. In this case, the allocated work_data is not\nusable for producing RNG output and must not remain associated with the\nhwrng state.\n\nPreviously, the failure path only logged a warning but left the pointer\nstate uncleared, which can result in subsequent read attempts observing\nstale state and interpreting it as valid completion data.\n\nFix this by freeing the pending work_data. The I2C transaction reports\nan error. This ensures that failed requests do not leave residual state\nbehind that could be interpreted as valid RNG data on later reads.\nClearing rng->priv is done at the subsequent call to nonblocking read."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:11:53.852Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a430b5b6d2ddd2b266330f8507a655be1148347d"},{"url":"https://git.kernel.org/stable/c/4e76d85e505b7451925efbcd67c015e8c2440c68"},{"url":"https://git.kernel.org/stable/c/bcac9052e19490231ff6e0678a06bd2fcf8db3af"},{"url":"https://git.kernel.org/stable/c/28cc179252347718f97045dd5ea74165609dbd7d"},{"url":"https://git.kernel.org/stable/c/0d6db386133d9230befb77967bbf130443964860"},{"url":"https://git.kernel.org/stable/c/f4d347fb1309b69ea6f817a17e6b2893c8d754b7"},{"url":"https://git.kernel.org/stable/c/94abda77b57a35b82bba0365bad072d94d67ffe9"},{"url":"https://git.kernel.org/stable/c/72bbf11ba14bd7d5fbf31a1ec42fff608b657f74"}],"title":"crypto: atmel-sha204a - fix heap info leak on I2C transfer failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-93159","datePublished":"2026-09-17T16:11:53.852Z","dateReserved":"2026-09-17T16:02:15.089Z","dateUpdated":"2026-09-17T16:11:53.852Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:18:11","lastModifiedDate":"2026-09-17 17:18:11","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"93159","Ordinal":"1","Title":"crypto: atmel-sha204a - fix heap info leak on I2C transfer failu","CVE":"CVE-2026-93159","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"93159","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: atmel-sha204a - fix heap info leak on I2C transfer failure\n\nThe nonblocking RNG path allocates a work_data structure to track the\nstate of an in-flight asynchronous I2C request. This pointer is stored\nin rng->priv and later consumed by the read path once the transaction\ncompletes.\n\nIf the underlying I2C transfer fails, the completion callback is invoked\nwith a non-zero status. In this case, the allocated work_data is not\nusable for producing RNG output and must not remain associated with the\nhwrng state.\n\nPreviously, the failure path only logged a warning but left the pointer\nstate uncleared, which can result in subsequent read attempts observing\nstale state and interpreting it as valid completion data.\n\nFix this by freeing the pending work_data. The I2C transaction reports\nan error. This ensures that failed requests do not leave residual state\nbehind that could be interpreted as valid RNG data on later reads.\nClearing rng->priv is done at the subsequent call to nonblocking read.","Type":"Description","Title":"crypto: atmel-sha204a - fix heap info leak on I2C transfer failu"}]}}}