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CVE-2023-53538

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: insert tree mod log move in push_node_left There is a fairly unlikely race condition in tree mod log rewind that can res…

Published Oct 4, 2025CWE-476EPSS 0.15%

Overview

CVE-2023-53538 is a medium-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

btrfs: insert tree mod log move in push_node_left

There is a fairly unlikely race condition in tree mod log rewind that

can result in a kernel panic which has the following trace:

[530.569] BTRFS critical (device sda3): unable to find logical 0 length 4096

[530.585] BTRFS critical (device sda3): unable to find logical 0 length 4096

[530.602] BUG: kernel NULL pointer dereference, address: 0000000000000002

[530.618] #PF: supervisor read access in kernel mode

[530.629] #PF: error_code(0x0000) - not-present page

[530.641] PGD 0 P4D 0

[530.647] Oops: 0000 [#1] SMP

[530.654] CPU: 30 PID: 398973 Comm: below Kdump: loaded Tainted: G S O K 5.12.0-0_fbk13_clang_7455_gb24de3bdb045 #1

[530.680] Hardware name: Quanta Mono Lake-M.2 SATA 1HY9U9Z001G/Mono Lake-M.2 SATA, BIOS F20_3A15 08/16/2017

[530.703] RIP: 0010:__btrfs_map_block+0xaa/0xd00

[530.755] RSP: 0018:ffffc9002c2f7600 EFLAGS: 00010246

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Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/11f14402fe3437852cb44945b3b9f1bdb4032956Refgit.kernel.org/stable/c/5cead5422a0e3d13b0bcee986c0f5c4ebb94100b

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53538?

CVE-2023-53538 is a medium-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53538?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-53538?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-53538?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53538 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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