github - ghsa-c7fj-w636-m5xx

GHSA-C7FJ-W636-M5XX

Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-10 21:30

Details

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

btrfs: fix match incorrectly in dev_args_match_device

syzkaller found a failed assertion:

assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921

This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly.

Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49849"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:16:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix match incorrectly in dev_args_match_device\n\nsyzkaller found a failed assertion:\n\n  assertion failed: (args-\u003edevid != (u64)-1) || args-\u003emissing, in fs/btrfs/volumes.c:6921\n\nThis can be triggered when we set devid to (u64)-1 by ioctl. In this\ncase, the match of devid will be skipped and the match of device may\nsucceed incorrectly.\n\nPatch 562d7b1512f7 introduced this function which is used to match device.\nThis function contains two matching scenarios, we can distinguish them by\nchecking the value of args-\u003emissing rather than check whether args-\u003edevid\nand args-\u003euuid is default value.",
  "id": "GHSA-c7fj-w636-m5xx",
  "modified": "2025-11-10T21:30:28Z",
  "published": "2025-05-01T15:31:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49849"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49849 (GCVE-0-2022-49849)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2025-05-04 08:46

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in dev_args_match_device syzkaller found a failed assertion: assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly. Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c9fe4719c662e0af1…
	https://git.kernel.org/stable/c/bc6c127c377010f13…
	https://git.kernel.org/stable/c/0fca385d6ebc3cabb…

Impacted products

Vendor

Product

Version

Linux

Affected: 5578b681fbf2b22d61189a2539efd3009518b328 , < c9fe4719c662e0af17eea723cf345e37719fd3c9 (git)
Affected: 562d7b1512f7369a19bca2883e2e8672d78f0481 , < bc6c127c377010f136360552ebf91c2723081c1b (git)
Affected: 562d7b1512f7369a19bca2883e2e8672d78f0481 , < 0fca385d6ebc3cabb20f67bcf8a71f1448bdc001 (git)

Linux

Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 5.15.79 , ≤ 5.15.* (semver)
Unaffected: 6.0.9 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/volumes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
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              "versionType": "git"
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              "lessThan": "bc6c127c377010f136360552ebf91c2723081c1b",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "562d7b1512f7369a19bca2883e2e8672d78f0481",
              "versionType": "git"
            }
          ]
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          "versions": [
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              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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            },
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              "version": "6.0.9",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.15.54",
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                  "versionStartIncluding": "5.16",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix match incorrectly in dev_args_match_device\n\nsyzkaller found a failed assertion:\n\n  assertion failed: (args-\u003edevid != (u64)-1) || args-\u003emissing, in fs/btrfs/volumes.c:6921\n\nThis can be triggered when we set devid to (u64)-1 by ioctl. In this\ncase, the match of devid will be skipped and the match of device may\nsucceed incorrectly.\n\nPatch 562d7b1512f7 introduced this function which is used to match device.\nThis function contains two matching scenarios, we can distinguish them by\nchecking the value of args-\u003emissing rather than check whether args-\u003edevid\nand args-\u003euuid is default value."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:46:50.830Z",
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          "url": "https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001"
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    "datePublished": "2025-05-01T14:10:04.480Z",
    "dateReserved": "2025-05-01T14:05:17.230Z",
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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-C7FJ-W636-M5XX

CVE-2022-49849 (GCVE-0-2022-49849)

Tags

Sightings

Nomenclature