Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2023-53672

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
07/10/2025
Last modified:
03/02/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> btrfs: output extra debug info if we failed to find an inline backref<br /> <br /> [BUG]<br /> Syzbot reported several warning triggered inside<br /> lookup_inline_extent_backref().<br /> <br /> [CAUSE]<br /> As usual, the reproducer doesn&amp;#39;t reliably trigger locally here, but at<br /> least we know the WARN_ON() is triggered when an inline backref can not<br /> be found, and it can only be triggered when @insert is true. (I.e.<br /> inserting a new inline backref, which means the backref should already<br /> exist)<br /> <br /> [ENHANCEMENT]<br /> After the WARN_ON(), dump all the parameters and the extent tree<br /> leaf to help debug.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.9.1 (including) 4.14.326 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.15 (including) 4.19.295 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 (including) 5.4.257 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.197 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.133 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.55 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.5.5 (excluding)
cpe:2.3:o:linux:linux_kernel:3.9:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*
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:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.9:rc8:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools