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CVE-2022-49273

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

rtc: pl031: fix rtc features null pointer dereference

When there is no interrupt line, rtc alarm feature is disabled.

The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference.

Clear RTC_FEATURE_ALARM after the rtc device is allocated.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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      "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."
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    }
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