{"id":"CVE-2026-93159","revision":"e104701f346f41689338d3e967b6f38b","records":[{"revision":"e104701f346f41689338d3e967b6f38b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93159","aliases":[],"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":0,"publishedAt":"2026-09-17T16:11:53.852+00:00","modifiedAt":"2026-10-19T09:06:31.352+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                        \"drivers/crypto/atmel-sha204a.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"a430b5b6d2ddd2b266330f8507a655be1148347d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"4e76d85e505b7451925efbcd67c015e8c2440c68\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"bcac9052e19490231ff6e0678a06bd2fcf8db3af\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"28cc179252347718f97045dd5ea74165609dbd7d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"0d6db386133d9230befb77967bbf130443964860\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"f4d347fb1309b69ea6f817a17e6b2893c8d754b7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"94abda77b57a35b82bba0365bad072d94d67ffe9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"da001fb651b00e1deeaf24767dd691ae8152a4f5\",\n                            \"lessThan\": \"72bbf11ba14bd7d5fbf31a1ec42fff608b657f74\",\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                        \"drivers/crypto/atmel-sha204a.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/a430b5b6d2ddd2b266330f8507a655be1148347d","https://git.kernel.org/stable/c/4e76d85e505b7451925efbcd67c015e8c2440c68","https://git.kernel.org/stable/c/bcac9052e19490231ff6e0678a06bd2fcf8db3af","https://git.kernel.org/stable/c/28cc179252347718f97045dd5ea74165609dbd7d","https://git.kernel.org/stable/c/0d6db386133d9230befb77967bbf130443964860","https://git.kernel.org/stable/c/f4d347fb1309b69ea6f817a17e6b2893c8d754b7","https://git.kernel.org/stable/c/94abda77b57a35b82bba0365bad072d94d67ffe9","https://git.kernel.org/stable/c/72bbf11ba14bd7d5fbf31a1ec42fff608b657f74"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93159","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93159","identifiers":["CVE-2026-93159"]},"retained":false,"historicalAffected":[]}],"coverage":[]}