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 :
Feb. 3, 2026, 6:59 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- 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.
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.
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.
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Initial Analysis by [email protected]
Feb. 03, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:3.9:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.295 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.257 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.5.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.55 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.133 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.197 *cpe:2.3:o:linux:linux_kernel:3.9:rc8:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.9.1 up to (excluding) 4.14.326 Added Reference Type kernel.org: https://git.kernel.org/stable/c/28062cd6eda04035d8f6ded2001292ac8b496149 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/376b41524b71e494514720bd6114325b0a2ed19c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/400e08a16604b534fdd82c5a288fa150d04f5f79 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6994f806c6d1ae8b59344d3700358547f3b3fe1d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7afbfde45d665953b4d5a42a721e15bf0315d89b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7f72f50547b7af4ddf985b07fc56600a4deba281 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b7c3cf2f6c42e6688b1c37215a0b1663f982f915 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e70ba449b04b40584bdabb383d10455397cbf177 Types: Patch -
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