CVE-2022-50379
Vulnerability Scoring
Analysis In Progress
CVE-2022-50379 Vulnerability Analysis & Exploit Details
CVE-2022-50379
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2022-50379 Details
Status: Awaiting Analysis
Last updated: 🕓 19 Sep 2025, 16:00 UTC
Originally published on: 🕑 18 Sep 2025, 14:15 UTC
Time between publication and last update: 1 days
CVSS Release:
CVE-2022-50379 Vulnerability Summary
CVE-2022-50379: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota enable and quota rescan ioctl When enabling quotas, at btrfs_quota_enable(), after committing the transaction, we change fs_info->quota_root to point to the quota root we created and set BTRFS_FS_QUOTA_ENABLED at fs_info->flags. Then we try to start the qgroup rescan worker, first by initializing it with a call to qgroup_rescan_init() - however if that fails we end up freeing the quota root but we leave fs_info->quota_root still pointing to it, this can later result in a use-after-free somewhere else. We have previously set the flags BTRFS_FS_QUOTA_ENABLED and BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail with -EINPROGRESS at btrfs_quota_enable(), which is possible if someone already called the quota rescan ioctl, and therefore started the rescan worker. So fix this by ignoring an -EINPROGRESS and asserting we can't get any other error.
Assessing the Risk of CVE-2022-50379
Access Complexity Graph
The exploitability of CVE-2022-50379 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2022-50379
No exploitability data is available for CVE-2022-50379.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2022-50379, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2022-50379, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2022-50379 does not compromise confidentiality.
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Integrity:
None
CVE-2022-50379 does not impact data integrity.
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Availability:
None
CVE-2022-50379 does not affect system availability.
CVE-2022-50379 References
External References
- https://git.kernel.org/stable/c/0efd9dfc00d677a1d0929319a6103cb2dfc41c22
- https://git.kernel.org/stable/c/26b7c0ac49a3eea15559c9d84863736a6d1164b4
- https://git.kernel.org/stable/c/331cd9461412e103d07595a10289de90004ac890
- https://git.kernel.org/stable/c/47b5ffe86332af95f0f52be0a63d4da7c2b37b55
- https://git.kernel.org/stable/c/4b996a3014ef014af8f97b60c35f5289210a4720
- https://git.kernel.org/stable/c/6c22f86dd221eba0c7af645b1af73dcbc04ee27b
- https://git.kernel.org/stable/c/c97f6d528c3f1c83a6b792a8a7928c236c80b8fe
CWE Common Weakness Enumeration
Unknown
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