FKIE_CVE-2022-49047

Vulnerability from fkie_nvd - Published: 2025-02-26 07:00 - Updated: 2026-06-17 05:16
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ep93xx: clock: Fix UAF in ep93xx_clk_register_gate() arch/arm/mach-ep93xx/clock.c:154:2: warning: Use of memory after it is freed [clang-analyzer-unix.Malloc] arch/arm/mach-ep93xx/clock.c:151:2: note: Taking true branch if (IS_ERR(clk)) ^ arch/arm/mach-ep93xx/clock.c:152:3: note: Memory is released kfree(psc); ^~~~~~~~~~ arch/arm/mach-ep93xx/clock.c:154:2: note: Use of memory after it is freed return &psc->hw; ^ ~~~~~~~~
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0f12166872da46c6b57ba2f1314bbf310b3bf017Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3b68b08885217abd9c57ff9b3bb3eb173eee02a9Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 5.18
linux linux_kernel 5.18
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm/mach-ep93xx/clock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0f12166872da46c6b57ba2f1314bbf310b3bf017",
              "status": "affected",
              "version": "9645ccc7bd7a16cd73c3be9dee70cd702b03be37",
              "versionType": "git"
            },
            {
              "lessThan": "3b68b08885217abd9c57ff9b3bb3eb173eee02a9",
              "status": "affected",
              "version": "9645ccc7bd7a16cd73c3be9dee70cd702b03be37",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm/mach-ep93xx/clock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E22C86CB-06CD-4D16-AB2A-F21EE8199262",
              "versionEndExcluding": "5.17.4",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "6AD94161-84BB-42E6-9882-4FC0C42E9FC1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "7AB06DDF-3C2B-416D-B448-E990D8FF67A9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nep93xx: clock: Fix UAF in ep93xx_clk_register_gate()\n\narch/arm/mach-ep93xx/clock.c:154:2: warning: Use of memory after it is freed [clang-analyzer-unix.Malloc]\narch/arm/mach-ep93xx/clock.c:151:2: note: Taking true branch\nif (IS_ERR(clk))\n^\narch/arm/mach-ep93xx/clock.c:152:3: note: Memory is released\nkfree(psc);\n^~~~~~~~~~\narch/arm/mach-ep93xx/clock.c:154:2: note: Use of memory after it is freed\nreturn \u0026psc-\u003ehw;\n^ ~~~~~~~~"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ep93xx: clock: Arreglar UAF en ep93xx_clk_register_gate() arch/arm/mach-ep93xx/clock.c:154:2: advertencia: Uso de memoria despu\u00e9s de que se libera [clang-analyzer-unix.Malloc] arch/arm/mach-ep93xx/clock.c:151:2: nota: Tomando rama verdadera si (IS_ERR(clk)) ^ arch/arm/mach-ep93xx/clock.c:152:3: nota: Se libera memoria kfree(psc); ^~~~~~~~~~ arch/arm/mach-ep93xx/clock.c:154:2: nota: Uso de memoria despu\u00e9s de que se libera return \u0026amp;psc-\u0026gt;hw; ^ ~~~~~~~~"
    }
  ],
  "id": "CVE-2022-49047",
  "lastModified": "2026-06-17T05:16:55.880",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-49047",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-02-27T17:59:30.647734Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-02-26T07:00:41.983",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0f12166872da46c6b57ba2f1314bbf310b3bf017"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3b68b08885217abd9c57ff9b3bb3eb173eee02a9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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