{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-64315", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.779Z", "datePublished": "2026-07-25T08:49:45.787Z", "dateUpdated": "2026-08-17T04:53:15.471Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:53:15.471Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: caam - use print_hex_dump_devel to guard key hex dumps\n\nUse print_hex_dump_devel() for dumping sensitive key material in\n*_setkey() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG\nis enabled." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The exposed keys are obtained through local kernel-log interfaces such as /dev/kmsg or syslog; network consumers can cause key installation, but the secret is not returned remotely.\nAC:H - The DPAA2 CAAM implementation must be selected and its normally disabled dynamic-debug callsite must have been enabled by boot configuration or an administrator, a condition an unprivileged attacker cannot create.\nPR:L - On systems with dmesg_restrict disabled, an ordinary local user can read the global kernel log and can invoke the affected callbacks through AF_ALG without capabilities.\nUI:N - No victim action is required after the vulnerable logging configuration is active; services and protocol stacks install keys during normal operation.\nS:U - The disclosure and resulting compromise of kernel-protected cryptographic sessions remain within the host kernel's security authority.\nC:H - The dumps contain complete encryption and authentication keys, including RFC4106/RFC4543 salt material, enabling decryption of protected IPsec, SMB, or other traffic.\nI:H - Disclosed AEAD or authentication keys permit valid ciphertexts and authentication tags to be forged, enabling unauthorized modification of protected communications.\nA:H - An AF_ALG caller can trigger the unratelimited dumps continuously, potentially stalling systems using slow debug consoles, while stolen authentication keys can also sustain disruption of protected IPsec or SMB sessions." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/crypto/caam/caamalg_qi2.c" ], "versions": [ { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "1ec775f6a124cce6278ae58b7d1c78a3bc6eef23", "status": "affected", "versionType": "git" }, { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "bcf3cf74dfb6981e18b22cbf561f859a0f7faa26", "status": "affected", "versionType": "git" }, { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "6407dc85d0a4306681cf6c9be7f05e05dcb67a37", "status": "affected", "versionType": "git" }, { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "c8cfe11e48b2a4646fa662fcaa92e14810a28d46", "status": "affected", "versionType": "git" }, { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "8904b425cfcafe6a820c94b9bdf4b10f7d70f9d7", "status": "affected", "versionType": "git" }, { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "d0b8cafd529b4ec759190c6081f7a76efb563a8f", "status": "affected", "versionType": "git" }, { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "59057f5d4e9a195c6dd61695ad3bc4481ddf4f14", "status": "affected", "versionType": "git" }, { "version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "8005dc808bcce7d6cc2ae015a3cde1683bee602d", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/crypto/caam/caamalg_qi2.c" ], "versions": [ { "version": "4.20", "status": "affected" }, { "version": "0", "lessThan": "4.20", "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", "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": "4.20", "versionEndExcluding": "5.10.261" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.15.212" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.1.178" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.6.145" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.12.96" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.18.39" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.1.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1ec775f6a124cce6278ae58b7d1c78a3bc6eef23" }, { "url": "https://git.kernel.org/stable/c/bcf3cf74dfb6981e18b22cbf561f859a0f7faa26" }, { "url": "https://git.kernel.org/stable/c/6407dc85d0a4306681cf6c9be7f05e05dcb67a37" }, { "url": "https://git.kernel.org/stable/c/c8cfe11e48b2a4646fa662fcaa92e14810a28d46" }, { "url": "https://git.kernel.org/stable/c/8904b425cfcafe6a820c94b9bdf4b10f7d70f9d7" }, { "url": "https://git.kernel.org/stable/c/d0b8cafd529b4ec759190c6081f7a76efb563a8f" }, { "url": "https://git.kernel.org/stable/c/59057f5d4e9a195c6dd61695ad3bc4481ddf4f14" }, { "url": "https://git.kernel.org/stable/c/8005dc808bcce7d6cc2ae015a3cde1683bee602d" } ], "title": "crypto: caam - use print_hex_dump_devel to guard key hex dumps", "x_generator": { "engine": "bippy-1.2.0" } } } }