CVE-2024-41078

MEDIUM EPSS 12.8%
Published Jul 29, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jul 29, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix quota root leak after quota disable failure If during the quota disable we fail when cleaning the quota tree or when deleting the root from the root tree, we jump to the 'out' label without ever dropping the reference on the quota root, resulting in a leak of the root since fs_info->quota_root is no longer pointing to the root (we have set it to NULL just before those steps). Fix this by always doing a btrfs_put_root() call under the 'out' label. This is a problem that exists since qgroups were first added in 2012 by commit bed92eae26cc ("Btrfs: qgroup implementation and prototypes"), but back then we missed a kfree on the quota root and free_extent_buffer() calls on its root and commit root nodes, since back then roots were not yet reference counted.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel* <5.10.223
linuxlinux_kernel*≥5.11  –  <5.15.164
linuxlinux_kernel*≥5.16  –  <6.1.101
linuxlinux_kernel*≥6.2  –  <6.6.42
linuxlinux_kernel*≥6.7  –  <6.9.11
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d
    Patch