{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49273", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:49:39.297Z", "datePublished": "2025-02-26T01:56:19.110Z", "dateUpdated": "2025-05-04T08:33:55.937Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:33:55.937Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pl031: fix rtc features null pointer dereference\n\nWhen there is no interrupt line, rtc alarm feature is disabled.\n\nThe clearing of the alarm feature bit was being done prior to allocations\nof ldata->rtc device, resulting in a null pointer dereference.\n\nClear RTC_FEATURE_ALARM after the rtc device is allocated."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/rtc/rtc-pl031.c"], "versions": [{"version": "d9b0dd54a1943f47a381a474f8ea2c94466110c0", "lessThan": "cd2722e411e8ab7e5ae41102f6925fa13dffdac5", "status": "affected", "versionType": "git"}, {"version": "d9b0dd54a1943f47a381a474f8ea2c94466110c0", "lessThan": "d274ce4a3dfd0b9a292667535578359b865765cb", "status": "affected", "versionType": "git"}, {"version": "d9b0dd54a1943f47a381a474f8ea2c94466110c0", "lessThan": "1b915703964f7e636961df04c540261dc55c6c70", "status": "affected", "versionType": "git"}, {"version": "d9b0dd54a1943f47a381a474f8ea2c94466110c0", "lessThan": "ea6af39f3da50c86367a71eb3cc674ade3ed244c", "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/rtc/rtc-pl031.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.33", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.19", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.2", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18", "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": "5.12", "versionEndExcluding": "5.15.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.16.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.17.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5"}, {"url": "https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb"}, {"url": "https://git.kernel.org/stable/c/1b915703964f7e636961df04c540261dc55c6c70"}, {"url": "https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c"}], "title": "rtc: pl031: fix rtc features null pointer dereference", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "02AF1052-DC50-47B3-B1DE-638E4BBDCCD1", "versionEndExcluding": "5.15.33", "versionStartIncluding": "5.12", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B", "versionEndExcluding": "5.16.19", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF", "versionEndExcluding": "5.17.2", "versionStartIncluding": "5.17", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pl031: fix rtc features null pointer dereference\n\nWhen there is no interrupt line, rtc alarm feature is disabled.\n\nThe clearing of the alarm feature bit was being done prior to allocations\nof ldata->rtc device, resulting in a null pointer dereference.\n\nClear RTC_FEATURE_ALARM after the rtc device is allocated."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rtc: pl031: se corrige la desreferencia de puntero nulo de las funciones rtc Cuando no hay una l\u00ednea de interrupci\u00f3n, la funci\u00f3n de alarma rtc se desactiva. La eliminaci\u00f3n del bit de la funci\u00f3n de alarma se realizaba antes de las asignaciones del dispositivo ldata->rtc, lo que generaba una desreferencia de puntero nulo. Borre RTC_FEATURE_ALARM despu\u00e9s de que se asigne el dispositivo rtc."}], "id": "CVE-2022-49273", "lastModified": "2025-04-14T16:53:14.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2025-02-26T07:01:04.190", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1b915703964f7e636961df04c540261dc55c6c70"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "[email protected]", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2023:6583", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}, {"advisory": "RHSA-2023:6583", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}], "bugzilla": {"description": "kernel: rtc: pl031: fix rtc features null pointer dereference", "id": "2348294", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348294"}, "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": "verified"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nrtc: pl031: fix rtc features null pointer dereference\nWhen there is no interrupt line, rtc alarm feature is disabled.\nThe clearing of the alarm feature bit was being done prior to allocations\nof ldata->rtc device, resulting in a null pointer dereference.\nClear RTC_FEATURE_ALARM after the rtc device is allocated.", "A flaw was found in the rtc-pl031 module in the Linux kernel. The alarm feature bit was cleaned before device initialization, which caused a NULL pointer dereference when there was no interrupt line. This resulted in a system crash and a denial of service."], "name": "CVE-2022-49273", "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": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49273\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49273\nhttps://lore.kernel.org/linux-cve-announce/2025022630-CVE-2022-49273-61de@gregkh/T"], "statement": "The rtc-pl031 module as shipped in the Linux kernel in Red Hat Enterprise Linux 6, 7 and 8 is not affected by this vulnerability because the vulnerable code was introduced in a newer version of the Linux kernel.\nThis issue has been fixed in Red Hat Enterprise Linux 9.3 via RHSA-2023:6583 [1].\n[1]. https://access.redhat.com/errata/RHSA-2023:6583", "threat_severity": "Moderate"}