PT-2025-38327 · Btrfs+3 · Btrfs+3

Published 2022-09-26 · Updated 2025-10-23 · CVE-2022-50379

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A race condition exists within the Btrfs file system related to quota management. Specifically, the issue occurs when enabling quotas, where a transaction commit is followed by setting the quota root and flags. If the qgroup rescan worker initialization fails, the quota root may be freed while fs info->quota root still points to it, potentially leading to a use-after-free condition. The issue arises when an -EINPROGRESS error is encountered during quota enabling, which can occur if the quota rescan ioctl has already been called.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

BDU:2026-01283

CVE-2022-50379

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Btrfs

Linux Kernel

Suse

References · 870

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50379.json · Exploit
• https://git.kernel.org/stable/c/4b996a3014ef014af8f97b60c35f5289210a4720 · Patch
• https://git.kernel.org/stable/c/0efd9dfc00d677a1d0929319a6103cb2dfc41c22 · Patch
• https://git.kernel.org/stable/c/26b7c0ac49a3eea15559c9d84863736a6d1164b4 · Patch
• https://git.kernel.org/stable/c/6c22f86dd221eba0c7af645b1af73dcbc04ee27b · Patch
• https://bdu.fstec.ru/vul/2026-01283 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-50379 · Vendor Advisory
• https://git.kernel.org/stable/c/331cd9461412e103d07595a10289de90004ac890 · Patch
• https://git.kernel.org/stable/c/c97f6d528c3f1c83a6b792a8a7928c236c80b8fe · Patch
• https://ubuntu.com/security/CVE-2022-50379 · Vendor Advisory
• https://git.kernel.org/stable/c/47b5ffe86332af95f0f52be0a63d4da7c2b37b55 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50379 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50379 · Security Note