{
  "threat_severity" : "Moderate",
  "public_date" : "2025-02-26T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: rtc: pl031: fix rtc features null pointer dereference",
    "id" : "2348294",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2348294"
  },
  "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." ],
  "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Red Hat Enterprise Linux 6, 7 and 8 is not affected by this vulnerability because the vulnerable code was introduced in a newer version of the Linux kernel.\nThis issue has been fixed in Red Hat Enterprise Linux 9.3 via RHSA-2023:6583 [1].\n[1].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",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "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"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "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" ],
  "name" : "CVE-2022-49273",
  "csaw" : false
}