github - ghsa-54fp-2qhf-47h6

GHSA-54FP-2QHF-47H6

Vulnerability from github – Published: 2025-02-27 21:32 – Updated: 2025-05-22 15:34

Details

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

btrfs: do not clean up repair bio if submit fails

The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49168"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:53Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not clean up repair bio if submit fails\n\nThe submit helper will always run bio_endio() on the bio if it fails to\nsubmit, so cleaning up the bio just leads to a variety of use-after-free\nand NULL pointer dereference bugs because we race with the endio\nfunction that is cleaning up the bio.  Instead just return BLK_STS_OK as\nthe repair function has to continue to process the rest of the pages,\nand the endio for the repair bio will do the appropriate cleanup for the\npage that it was given.",
  "id": "GHSA-54fp-2qhf-47h6",
  "modified": "2025-05-22T15:34:46Z",
  "published": "2025-02-27T21:32:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49168"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7170875083254b51fcc5d67f96640977083f481e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cbc3001a3264d998d6b6db3e23f935c158abd4d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e76c78c48902dae6fa612749f59162bca0a79e0b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49168 (GCVE-0-2022-49168)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2025-05-22 12:39

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-416 - Use After Free

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/7170875083254b51f…
	https://git.kernel.org/stable/c/e76c78c48902dae6f…
	https://git.kernel.org/stable/c/d1cb11fb45ebbb1e7…
	https://git.kernel.org/stable/c/8cbc3001a3264d998…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7170875083254b51fcc5d67f96640977083f481e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e76c78c48902dae6fa612749f59162bca0a79e0b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8cbc3001a3264d998d6b6db3e23f935c158abd4d (git)

Linux

Unaffected: 5.15.184 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)

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        "metrics": [
          {
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              "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",
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              "content": {
                "id": "CVE-2022-49168",
                "options": [
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            },
            {
              "lessThan": "8cbc3001a3264d998d6b6db3e23f935c158abd4d",
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          "versions": [
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              "status": "unaffected",
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                },
                {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not clean up repair bio if submit fails\n\nThe submit helper will always run bio_endio() on the bio if it fails to\nsubmit, so cleaning up the bio just leads to a variety of use-after-free\nand NULL pointer dereference bugs because we race with the endio\nfunction that is cleaning up the bio.  Instead just return BLK_STS_OK as\nthe repair function has to continue to process the rest of the pages,\nand the endio for the repair bio will do the appropriate cleanup for the\npage that it was given."
        }
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      "title": "btrfs: do not clean up repair bio if submit fails",
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    "datePublished": "2025-02-26T01:55:26.532Z",
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    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-54FP-2QHF-47H6

CVE-2022-49168 (GCVE-0-2022-49168)

Tags

Sightings

Nomenclature