fkie_nvd - fkie_cve-2022-50329

fkie_cve-2022-50329

Vulnerability from fkie_nvd

Published

2025-09-15 15:15

Modified

2025-09-15 15:22

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq Commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'") will access 'bic->bfqq' in bic_set_bfqq(), however, bfq_exit_icq_bfqq() can free bfqq first, and then call bic_set_bfqq(), which will cause uaf. Fix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq().

References

▼	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1425f1bb5df5239021fd09ebc2a5e8070e705d36
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1ed959fef5b1c6f1a7a3fbea543698c30ebd6678
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/246cf66e300b76099b5dbd3fdd39e9a5dbc53f02
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7949b0df3dd9f4817ed4a4e989fa9ee81df6205f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cfe5b38c37720313eff0dec5517442c7ab3c9a20

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq\n\nCommit 64dc8c732f5c (\"block, bfq: fix possible uaf for \u0027bfqq-\u003ebic\u0027\")\nwill access \u0027bic-\u003ebfqq\u0027 in bic_set_bfqq(), however, bfq_exit_icq_bfqq()\ncan free bfqq first, and then call bic_set_bfqq(), which will cause uaf.\n\nFix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq()."
    }
  ],
  "id": "CVE-2022-50329",
  "lastModified": "2025-09-15T15:22:27.090",
  "metrics": {},
  "published": "2025-09-15T15:15:45.067",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1425f1bb5df5239021fd09ebc2a5e8070e705d36"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1ed959fef5b1c6f1a7a3fbea543698c30ebd6678"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/246cf66e300b76099b5dbd3fdd39e9a5dbc53f02"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7949b0df3dd9f4817ed4a4e989fa9ee81df6205f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cfe5b38c37720313eff0dec5517442c7ab3c9a20"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2022-50329 (GCVE-0-2022-50329)

Vulnerability from cvelistv5

Published

2025-09-15 14:49

Modified

2025-09-15 14:49

Severity ?

Summary

References

▼	URL	Tags
	https://git.kernel.org/stable/c/1425f1bb5df5239021fd09ebc2a5e8070e705d36
	https://git.kernel.org/stable/c/7949b0df3dd9f4817ed4a4e989fa9ee81df6205f
	https://git.kernel.org/stable/c/cfe5b38c37720313eff0dec5517442c7ab3c9a20
	https://git.kernel.org/stable/c/1ed959fef5b1c6f1a7a3fbea543698c30ebd6678
	https://git.kernel.org/stable/c/246cf66e300b76099b5dbd3fdd39e9a5dbc53f02

Impacted products

Vendor

Product

Version

▼

Linux

Version: 5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a
Version: 094f3d9314d67691cb21ba091c1b528f6e3c4893
Version: b22fd72bfebda3956efc4431b60ddfc0a51e03e0
Version: 761564d93c8265f65543acf0a576b32d66bfa26a
Version: 64dc8c732f5c2b406cc752e6aaa1bd5471159cab

Linux

Version: 5.15.86   ≤
Version: 6.0.16   ≤
Version: 6.1.2   ≤

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/bfq-iosched.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1425f1bb5df5239021fd09ebc2a5e8070e705d36",
              "status": "affected",
              "version": "5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a",
              "versionType": "git"
            },
            {
              "lessThan": "7949b0df3dd9f4817ed4a4e989fa9ee81df6205f",
              "status": "affected",
              "version": "094f3d9314d67691cb21ba091c1b528f6e3c4893",
              "versionType": "git"
            },
            {
              "lessThan": "cfe5b38c37720313eff0dec5517442c7ab3c9a20",
              "status": "affected",
              "version": "b22fd72bfebda3956efc4431b60ddfc0a51e03e0",
              "versionType": "git"
            },
            {
              "lessThan": "1ed959fef5b1c6f1a7a3fbea543698c30ebd6678",
              "status": "affected",
              "version": "761564d93c8265f65543acf0a576b32d66bfa26a",
              "versionType": "git"
            },
            {
              "lessThan": "246cf66e300b76099b5dbd3fdd39e9a5dbc53f02",
              "status": "affected",
              "version": "64dc8c732f5c2b406cc752e6aaa1bd5471159cab",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/bfq-iosched.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5.15.87",
              "status": "affected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThan": "6.0.17",
              "status": "affected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.3",
              "status": "affected",
              "version": "6.1.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.87",
                  "versionStartIncluding": "5.15.86",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.17",
                  "versionStartIncluding": "6.0.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.3",
                  "versionStartIncluding": "6.1.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq\n\nCommit 64dc8c732f5c (\"block, bfq: fix possible uaf for \u0027bfqq-\u003ebic\u0027\")\nwill access \u0027bic-\u003ebfqq\u0027 in bic_set_bfqq(), however, bfq_exit_icq_bfqq()\ncan free bfqq first, and then call bic_set_bfqq(), which will cause uaf.\n\nFix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-15T14:49:32.123Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1425f1bb5df5239021fd09ebc2a5e8070e705d36"
        },
        {
          "url": "https://git.kernel.org/stable/c/7949b0df3dd9f4817ed4a4e989fa9ee81df6205f"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfe5b38c37720313eff0dec5517442c7ab3c9a20"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ed959fef5b1c6f1a7a3fbea543698c30ebd6678"
        },
        {
          "url": "https://git.kernel.org/stable/c/246cf66e300b76099b5dbd3fdd39e9a5dbc53f02"
        }
      ],
      "title": "block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50329",
    "datePublished": "2025-09-15T14:49:32.123Z",
    "dateReserved": "2025-09-15T14:18:36.815Z",
    "dateUpdated": "2025-09-15T14:49:32.123Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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