CVE-2022-49996 (GCVE-0-2022-49996)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2026-05-23 15:23
VLAI
Title
btrfs: fix possible memory leak in btrfs_get_dev_args_from_path()
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix possible memory leak in btrfs_get_dev_args_from_path() In btrfs_get_dev_args_from_path(), btrfs_get_bdev_and_sb() can fail if the path is invalid. In this case, btrfs_get_dev_args_from_path() returns directly without freeing args->uuid and args->fsid allocated before, which causes memory leak. To fix these possible leaks, when btrfs_get_bdev_and_sb() fails, btrfs_put_dev_args_from_path() is called to clean up the memory.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 321a81835b4aed4f717f89921286f6544ffa8be9 , < 5f52402c77013e4a826394b807dd5ea4dc83bd72 (git)
Affected: faa775c41d655a4786e9d53cb075a77bb5a75f66 , < 4b124ad87244cd7f0883c5eaa38d2326b2154cad (git)
Affected: faa775c41d655a4786e9d53cb075a77bb5a75f66 , < 9ea0106a7a3d8116860712e3f17cd52ce99f6707 (git)
Affected: 5.15.54 , < 5.15.64 (semver)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 5.15.64 , ≤ 5.15.* (semver)
Unaffected: 5.19.6 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
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      "title": "kernel: btrfs: fix possible memory leak in btrfs_get_dev_args_from_path()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49996.json",
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}



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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.


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