CVE-2022-50379

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

4.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0efd9dfc00d677a1d0929319a6103cb2dfc41c22 Patch
https://git.kernel.org/stable/c/26b7c0ac49a3eea15559c9d84863736a6d1164b4 Patch
https://git.kernel.org/stable/c/331cd9461412e103d07595a10289de90004ac890 Patch
https://git.kernel.org/stable/c/47b5ffe86332af95f0f52be0a63d4da7c2b37b55 Patch
https://git.kernel.org/stable/c/4b996a3014ef014af8f97b60c35f5289210a4720 Patch
https://git.kernel.org/stable/c/6c22f86dd221eba0c7af645b1af73dcbc04ee27b Patch
https://git.kernel.org/stable/c/c97f6d528c3f1c83a6b792a8a7928c236c80b8fe Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

11 Dec 2025, 18:19

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0efd9dfc00d677a1d0929319a6103cb2dfc41c22 - () https://git.kernel.org/stable/c/0efd9dfc00d677a1d0929319a6103cb2dfc41c22 - Patch
References () https://git.kernel.org/stable/c/26b7c0ac49a3eea15559c9d84863736a6d1164b4 - () https://git.kernel.org/stable/c/26b7c0ac49a3eea15559c9d84863736a6d1164b4 - Patch
References () https://git.kernel.org/stable/c/331cd9461412e103d07595a10289de90004ac890 - () https://git.kernel.org/stable/c/331cd9461412e103d07595a10289de90004ac890 - Patch
References () https://git.kernel.org/stable/c/47b5ffe86332af95f0f52be0a63d4da7c2b37b55 - () https://git.kernel.org/stable/c/47b5ffe86332af95f0f52be0a63d4da7c2b37b55 - Patch
References () https://git.kernel.org/stable/c/4b996a3014ef014af8f97b60c35f5289210a4720 - () https://git.kernel.org/stable/c/4b996a3014ef014af8f97b60c35f5289210a4720 - Patch
References () https://git.kernel.org/stable/c/6c22f86dd221eba0c7af645b1af73dcbc04ee27b - () https://git.kernel.org/stable/c/6c22f86dd221eba0c7af645b1af73dcbc04ee27b - Patch
References () https://git.kernel.org/stable/c/c97f6d528c3f1c83a6b792a8a7928c236c80b8fe - () https://git.kernel.org/stable/c/c97f6d528c3f1c83a6b792a8a7928c236c80b8fe - Patch
CWE CWE-362
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.7
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

18 Sep 2025, 14:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-09-18 14:15

Updated : 2025-12-11 18:19

NVD link : CVE-2022-50379

Mitre link : CVE-2022-50379

CVE.ORG link : CVE-2022-50379

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')