{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49852", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.230Z", "datePublished": "2025-05-01T14:10:07.001Z", "dateUpdated": "2025-05-04T08:46:54.720Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:46:54.720Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: process: fix kernel info leakage\n\nthread_struct's s[12] may contain random kernel memory content, which\nmay be finally leaked to userspace. This is a security hole. Fix it\nby clearing the s[12] array in thread_struct when fork.\n\nAs for kthread case, it's better to clear the s[12] array as well."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/riscv/kernel/process.c"], "versions": [{"version": "7db91e57a0acde126a162ababfb1e0ab190130cb", "lessThan": "c4601d30f7d989b4f354df899ab85b5f7a750d30", "status": "affected", "versionType": "git"}, {"version": "7db91e57a0acde126a162ababfb1e0ab190130cb", "lessThan": "c5c0b3167537793a7cf936fb240366eefd2fc7fb", "status": "affected", "versionType": "git"}, {"version": "7db91e57a0acde126a162ababfb1e0ab190130cb", "lessThan": "e56d18a976dda653194218df6d40d8122c775712", "status": "affected", "versionType": "git"}, {"version": "7db91e57a0acde126a162ababfb1e0ab190130cb", "lessThan": "cc36c7fa5d9384602529ba3eea8c5daee7be4dbc", "status": "affected", "versionType": "git"}, {"version": "7db91e57a0acde126a162ababfb1e0ab190130cb", "lessThan": "358a68f98304b40b201ba5afe94c20355aa3dc68", "status": "affected", "versionType": "git"}, {"version": "7db91e57a0acde126a162ababfb1e0ab190130cb", "lessThan": "6510c78490c490a6636e48b61eeaa6fb65981f4b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/riscv/kernel/process.c"], "versions": [{"version": "4.15", "status": "affected"}, {"version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.267", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.225", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.155", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.79", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.9", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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": "4.15", "versionEndExcluding": "4.19.267"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.4.225"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.10.155"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.15.79"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.0.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30"}, {"url": "https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb"}, {"url": "https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712"}, {"url": "https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc"}, {"url": "https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68"}, {"url": "https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b"}], "title": "riscv: process: fix kernel info leakage", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: process: fix kernel info leakage\n\nthread_struct's s[12] may contain random kernel memory content, which\nmay be finally leaked to userspace. This is a security hole. Fix it\nby clearing the s[12] array in thread_struct when fork.\n\nAs for kthread case, it's better to clear the s[12] array as well."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv: proceso: correcci\u00f3n de fuga de informaci\u00f3n del kernel. El array s[12] de thread_struct puede contener contenido aleatorio de memoria del kernel, que podr\u00eda filtrarse al espacio de usuario. Esto representa una vulnerabilidad de seguridad. Para solucionarlo, borre la matriz s[12] de thread_struct al bifurcar. En el caso de kthread, es recomendable borrar tambi\u00e9n la matriz s[12]."}], "id": "CVE-2022-49852", "lastModified": "2025-05-02T13:53:20.943", "metrics": {}, "published": "2025-05-01T15:16:08.787", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: riscv: process: fix kernel info leakage", "id": "2363494", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363494"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nriscv: process: fix kernel info leakage\nthread_struct's s[12] may contain random kernel memory content, which\nmay be finally leaked to userspace. This is a security hole. Fix it\nby clearing the s[12] array in thread_struct when fork.\nAs for kthread case, it's better to clear the s[12] array as well."], "name": "CVE-2022-49852", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49852\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49852\nhttps://lore.kernel.org/linux-cve-announce/2025050144-CVE-2022-49852-a851@gregkh/T"], "threat_severity": "Moderate"}