0.0
NA
CVE-2024-41078
Btrfs Quota Root Leak
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.

INFO

Published Date :

July 29, 2024, 3:15 p.m.

Last Modified :

July 29, 2024, 4:21 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2024-41078 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-41078.

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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-41078 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-41078 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 29, 2024

    Action Type Old Value New Value
    Added 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.
    Added Reference kernel.org https://git.kernel.org/stable/c/94818bdb00ef34a996a06aa63d11f591074cb757 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/8a69529f22590b67bb018de9acbcf94abc8603cf [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/5ef3961682e5310f2221bae99bcf9f5d0f4b0d51 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f88aeff5a173e8ba3133314eb4b964236ef3589d [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/7dd6a5b96157a21245566b21fd58276a214357ff [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/a7e4c6a3031c74078dba7fa36239d0f4fe476c53 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-41078 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-41078 weaknesses.

NONE - Vulnerability Scoring System
: