{"id":"CVE-2026-93160","state":"PUBLISHED","title":"crypto: atmel-ecc - reject hardware ECDH without a public key","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: atmel-ecc - reject hardware ECDH without a public key\n\nThe hardware ECDH path in atmel_ecdh_compute_shared_secret() uses the\nprivate key stored in the device. However, the public key is cached only\nafter atmel_ecdh_set_secret() successfully generated that private key\nfor the current tfm.\n\natmel_ecdh_generate_public_key() already rejects requests when no public\nkey is cached. Add the same check to atmel_ecdh_compute_shared_secret()\nto prevent the device from using a private key that was not generated\nfor the current tfm.","publishedAt":"2026-09-17T16:11:54.517Z","updatedAt":"2026-10-19T09:06:32.331Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"5e33791dfcc6459e402a524669093cd953d5b2df","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"33241f198287960bba5fc2251400896762650bfa","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"3ea8b780d68f02fe235c5051ce8ac4b4940b9259","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"6457162f74f45284ade2da644a4f0c54758ac0a6","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"2b40bab362d2b598f34e5ccd4694cedc3c2553d4","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"e64d6f1aae8c837cb3f0446bf44108226d7370f4","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"add28e9988902d29ea93f4869280b4a16a049ea5","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"f240f9b588f4e2de89822adebf560a96b5d263ed","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/crypto/atmel-ecc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/crypto/atmel-ecc.c"]}],"references":["https://git.kernel.org/stable/c/5e33791dfcc6459e402a524669093cd953d5b2df","https://git.kernel.org/stable/c/33241f198287960bba5fc2251400896762650bfa","https://git.kernel.org/stable/c/3ea8b780d68f02fe235c5051ce8ac4b4940b9259","https://git.kernel.org/stable/c/6457162f74f45284ade2da644a4f0c54758ac0a6","https://git.kernel.org/stable/c/2b40bab362d2b598f34e5ccd4694cedc3c2553d4","https://git.kernel.org/stable/c/e64d6f1aae8c837cb3f0446bf44108226d7370f4","https://git.kernel.org/stable/c/add28e9988902d29ea93f4869280b4a16a049ea5","https://git.kernel.org/stable/c/f240f9b588f4e2de89822adebf560a96b5d263ed"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93160.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93160","state":"PUBLISHED","datePublished":"2026-09-17T16:11:54.517Z","dateUpdated":"2026-10-19T09:06:32.331Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.089Z"},"containers":{"cna":{"title":"crypto: atmel-ecc - reject hardware ECDH without a public key","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: atmel-ecc - reject hardware ECDH without a public key\n\nThe hardware ECDH path in atmel_ecdh_compute_shared_secret() uses the\nprivate key stored in the device. However, the public key is cached only\nafter atmel_ecdh_set_secret() successfully generated that private key\nfor the current tfm.\n\natmel_ecdh_generate_public_key() already rejects requests when no public\nkey is cached. Add the same check to atmel_ecdh_compute_shared_secret()\nto prevent the device from using a private key that was not generated\nfor the current tfm."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"5e33791dfcc6459e402a524669093cd953d5b2df","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"33241f198287960bba5fc2251400896762650bfa","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"3ea8b780d68f02fe235c5051ce8ac4b4940b9259","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"6457162f74f45284ade2da644a4f0c54758ac0a6","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"2b40bab362d2b598f34e5ccd4694cedc3c2553d4","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"e64d6f1aae8c837cb3f0446bf44108226d7370f4","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"add28e9988902d29ea93f4869280b4a16a049ea5","versionType":"git"},{"version":"11105693fa05f499532b330da65c78ff93ed4440","status":"affected","lessThan":"f240f9b588f4e2de89822adebf560a96b5d263ed","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/crypto/atmel-ecc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/crypto/atmel-ecc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5e33791dfcc6459e402a524669093cd953d5b2df"},{"url":"https://git.kernel.org/stable/c/33241f198287960bba5fc2251400896762650bfa"},{"url":"https://git.kernel.org/stable/c/3ea8b780d68f02fe235c5051ce8ac4b4940b9259"},{"url":"https://git.kernel.org/stable/c/6457162f74f45284ade2da644a4f0c54758ac0a6"},{"url":"https://git.kernel.org/stable/c/2b40bab362d2b598f34e5ccd4694cedc3c2553d4"},{"url":"https://git.kernel.org/stable/c/e64d6f1aae8c837cb3f0446bf44108226d7370f4"},{"url":"https://git.kernel.org/stable/c/add28e9988902d29ea93f4869280b4a16a049ea5"},{"url":"https://git.kernel.org/stable/c/f240f9b588f4e2de89822adebf560a96b5d263ed"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:06:32.331Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}