Vulnerability-Lookup

GHSA-VR74-H7W6-QJP6

Vulnerability from github – Published: 2025-10-21 18:30 – Updated: 2025-10-21 18:30

Details

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

btrfs: do not double complete bio on errors during compressed reads

I hit some weird panics while fixing up the error handling from btrfs_lookup_bio_sums(). Turns out the compression path will complete the bio we use if we set up any of the compression bios and then return an error, and then btrfs_submit_data_bio() will also call bio_endio() on the bio.

Fix this by making btrfs_submit_compressed_read() responsible for calling bio_endio() on the bio if there are any errors. Currently it was only doing it if we created the compression bios, otherwise it was depending on btrfs_submit_data_bio() to do the right thing. This creates the above problem, so fix up btrfs_submit_compressed_read() to always call bio_endio() in case of an error, and then simply return from btrfs_submit_data_bio() if we had to call btrfs_submit_compressed_read().

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-2022-49167"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:53Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not double complete bio on errors during compressed reads\n\nI hit some weird panics while fixing up the error handling from\nbtrfs_lookup_bio_sums().  Turns out the compression path will complete\nthe bio we use if we set up any of the compression bios and then return\nan error, and then btrfs_submit_data_bio() will also call bio_endio() on\nthe bio.\n\nFix this by making btrfs_submit_compressed_read() responsible for\ncalling bio_endio() on the bio if there are any errors.  Currently it\nwas only doing it if we created the compression bios, otherwise it was\ndepending on btrfs_submit_data_bio() to do the right thing.  This\ncreates the above problem, so fix up btrfs_submit_compressed_read() to\nalways call bio_endio() in case of an error, and then simply return from\nbtrfs_submit_data_bio() if we had to call\nbtrfs_submit_compressed_read().",
  "id": "GHSA-vr74-h7w6-qjp6",
  "modified": "2025-10-21T18:30:29Z",
  "published": "2025-10-21T18:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49167"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a4ceb2b990771c374d85d496a1a45255dde48e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/987b5df1d10355d377315a26e7fb6c72ded83c9f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9f15de85d74e7eef021af059ca53a15f041cdd8"
    }
  ],
  "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-2022-49167 (GCVE-0-2022-49167)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-05-11 18:54

Title

btrfs: do not double complete bio on errors during compressed reads

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not double complete bio on errors during compressed reads I hit some weird panics while fixing up the error handling from btrfs_lookup_bio_sums(). Turns out the compression path will complete the bio we use if we set up any of the compression bios and then return an error, and then btrfs_submit_data_bio() will also call bio_endio() on the bio. Fix this by making btrfs_submit_compressed_read() responsible for calling bio_endio() on the bio if there are any errors. Currently it was only doing it if we created the compression bios, otherwise it was depending on btrfs_submit_data_bio() to do the right thing. This creates the above problem, so fix up btrfs_submit_compressed_read() to always call bio_endio() in case of an error, and then simply return from btrfs_submit_data_bio() if we had to call btrfs_submit_compressed_read().

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/4a4ceb2b990771c37…
https://git.kernel.org/stable/c/987b5df1d10355d37…
https://git.kernel.org/stable/c/f9f15de85d74e7eef…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 86ccbb4d2a2af4109430df518c995a4f7d14dfd2 , < 4a4ceb2b990771c374d85d496a1a45255dde48e3 (git) Affected: 86ccbb4d2a2af4109430df518c995a4f7d14dfd2 , < 987b5df1d10355d377315a26e7fb6c72ded83c9f (git) Affected: 86ccbb4d2a2af4109430df518c995a4f7d14dfd2 , < f9f15de85d74e7eef021af059ca53a15f041cdd8 (git)
Linux	Linux	Affected: 5.16 Unaffected: 0 , < 5.16 (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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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/compression.c",
            "fs/btrfs/inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4a4ceb2b990771c374d85d496a1a45255dde48e3",
              "status": "affected",
              "version": "86ccbb4d2a2af4109430df518c995a4f7d14dfd2",
              "versionType": "git"
            },
            {
              "lessThan": "987b5df1d10355d377315a26e7fb6c72ded83c9f",
              "status": "affected",
              "version": "86ccbb4d2a2af4109430df518c995a4f7d14dfd2",
              "versionType": "git"
            },
            {
              "lessThan": "f9f15de85d74e7eef021af059ca53a15f041cdd8",
              "status": "affected",
              "version": "86ccbb4d2a2af4109430df518c995a4f7d14dfd2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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            "fs/btrfs/inode.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": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.19",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not double complete bio on errors during compressed reads\n\nI hit some weird panics while fixing up the error handling from\nbtrfs_lookup_bio_sums().  Turns out the compression path will complete\nthe bio we use if we set up any of the compression bios and then return\nan error, and then btrfs_submit_data_bio() will also call bio_endio() on\nthe bio.\n\nFix this by making btrfs_submit_compressed_read() responsible for\ncalling bio_endio() on the bio if there are any errors.  Currently it\nwas only doing it if we created the compression bios, otherwise it was\ndepending on btrfs_submit_data_bio() to do the right thing.  This\ncreates the above problem, so fix up btrfs_submit_compressed_read() to\nalways call bio_endio() in case of an error, and then simply return from\nbtrfs_submit_data_bio() if we had to call\nbtrfs_submit_compressed_read()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:54:25.963Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/4a4ceb2b990771c374d85d496a1a45255dde48e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/987b5df1d10355d377315a26e7fb6c72ded83c9f"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9f15de85d74e7eef021af059ca53a15f041cdd8"
        }
      ],
      "title": "btrfs: do not double complete bio on errors during compressed reads",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49167",
    "datePublished": "2025-02-26T01:55:26.030Z",
    "dateReserved": "2025-02-26T01:49:39.278Z",
    "dateUpdated": "2026-05-11T18:54:25.963Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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-VR74-H7W6-QJP6

CVE-2022-49167 (GCVE-0-2022-49167)

Tags

Sightings

Nomenclature