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CVE-2023-53672
btrfs: output extra debug info if we failed to find an inline backref
Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.

INFO

Published Date :

Oct. 7, 2025, 4:15 p.m.

Last Modified :

Oct. 8, 2025, 7:38 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2023-53672 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
Solution
Update the Linux kernel to resolve a bug in btrfs that causes a debug information output failure.
  • Update the Linux kernel to the latest stable version.
  • Apply the provided patch to the btrfs module.
  • Recompile the kernel with the applied changes.
  • Reboot the system to load the new kernel.
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-2023-53672.

URL Resource
https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149
https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c
https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281
https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-53672 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-2023-53672 weaknesses.

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-2023-53672 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-53672 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.

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

    Oct. 07, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.
    Added Reference https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149
    Added Reference https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c
    Added Reference https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79
    Added Reference https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d
    Added Reference https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b
    Added Reference https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281
    Added Reference https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915
    Added Reference https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177
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.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.