CVE-2023-53073 (GCVE-0-2023-53073)
Vulnerability from cvelistv5
Published
2025-05-02 15:55
Modified
2025-05-04 07:49
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Always clear status for idx The variable 'status' (which contains the unhandled overflow bits) is not being properly masked in some cases, displaying the following warning: WARNING: CPU: 156 PID: 475601 at arch/x86/events/amd/core.c:972 amd_pmu_v2_handle_irq+0x216/0x270 This seems to be happening because the loop is being continued before the status bit being unset, in case x86_perf_event_set_period() returns 0. This is also causing an inconsistency because the "handled" counter is incremented, but the status bit is not cleaned. Move the bit cleaning together above, together when the "handled" counter is incremented.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/263f5ecaf7080513efc248ec739b6d9e00f4129f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d4c7b1f12e101d6d6253092588b127416ddfb6c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab33a8f7649b0324639a336e1081aaea51a4523e
Impacted products
Vendor Product Version
Linux Linux Version: 7685665c390dc68c2d9a74e8445f41494cc8f6cf
Version: 7685665c390dc68c2d9a74e8445f41494cc8f6cf
Version: 7685665c390dc68c2d9a74e8445f41494cc8f6cf
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   Linux Linux Version: 5.19
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{
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          "programFiles": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/amd/core: Always clear status for idx\n\nThe variable \u0027status\u0027 (which contains the unhandled overflow bits) is\nnot being properly masked in some cases, displaying the following\nwarning:\n\n  WARNING: CPU: 156 PID: 475601 at arch/x86/events/amd/core.c:972 amd_pmu_v2_handle_irq+0x216/0x270\n\nThis seems to be happening because the loop is being continued before\nthe status bit being unset, in case x86_perf_event_set_period()\nreturns 0. This is also causing an inconsistency because the \"handled\"\ncounter is incremented, but the status bit is not cleaned.\n\nMove the bit cleaning together above, together when the \"handled\"\ncounter is incremented."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:49:12.403Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/263f5ecaf7080513efc248ec739b6d9e00f4129f"
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      "title": "perf/x86/amd/core: Always clear status for idx",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53073",
    "datePublished": "2025-05-02T15:55:24.413Z",
    "dateReserved": "2025-05-02T15:51:43.549Z",
    "dateUpdated": "2025-05-04T07:49:12.403Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53073\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-02T16:15:26.330\",\"lastModified\":\"2025-05-05T20:54:45.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nperf/x86/amd/core: Always clear status for idx\\n\\nThe variable \u0027status\u0027 (which contains the unhandled overflow bits) is\\nnot being properly masked in some cases, displaying the following\\nwarning:\\n\\n  WARNING: CPU: 156 PID: 475601 at arch/x86/events/amd/core.c:972 amd_pmu_v2_handle_irq+0x216/0x270\\n\\nThis seems to be happening because the loop is being continued before\\nthe status bit being unset, in case x86_perf_event_set_period()\\nreturns 0. This is also causing an inconsistency because the \\\"handled\\\"\\ncounter is incremented, but the status bit is not cleaned.\\n\\nMove the bit cleaning together above, together when the \\\"handled\\\"\\ncounter is incremented.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: perf/x86/amd/core: Siempre borrar el estado de idx. La variable \u0027status\u0027 (que contiene los bits de desbordamiento no controlados) no se enmascara correctamente en algunos casos, mostrando la siguiente advertencia: ADVERTENCIA: CPU: 156 PID: 475601 en arch/x86/events/amd/core.c:972 amd_pmu_v2_handle_irq+0x216/0x270. Esto parece estar sucediendo porque el bucle contin\u00faa antes de que se desactive el bit de estado, en caso de que x86_perf_event_set_period() devuelva 0. Esto tambi\u00e9n causa una inconsistencia porque el contador \\\"controlado\\\" se incrementa, pero el bit de estado no se limpia. Mueva la limpieza de bits junto arriba, junto cuando se incrementa el contador \\\"controlado\\\".\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/263f5ecaf7080513efc248ec739b6d9e00f4129f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d4c7b1f12e101d6d6253092588b127416ddfb6c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ab33a8f7649b0324639a336e1081aaea51a4523e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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