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CVE-2023-53317

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ext4: fix WARNING in mb_find_extent Syzbot found the following issue: EXT4-fs: Warning: mounting with data=journal disables de…

Published Sep 16, 2025EPSS 0.16%

Overview

CVE-2023-53317 is a medium-severity vulnerability. It was published on September 16, 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:

ext4: fix WARNING in mb_find_extent

Syzbot found the following issue:

EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support!

EXT4-fs (loop0): orphan cleanup on readonly fs

------------[ cut here ]------------

WARNING: CPU: 1 PID: 5067 at fs/ext4/mballoc.c:1869 mb_find_extent+0x8a1/0xe30

Modules linked in:

CPU: 1 PID: 5067 Comm: syz-executor307 Not tainted 6.2.0-rc1-syzkaller #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022

RIP: 0010:mb_find_extent+0x8a1/0xe30 fs/ext4/mballoc.c:1869

RSP: 0018:ffffc90003c9e098 EFLAGS: 00010293

RAX: ffffffff82405731 RBX: 0000000000000041 RCX: ffff8880783457c0

RDX: 0000000000000000 RSI: 0000000000000041 RDI: 0000000000000040

RBP: 0000000000000040 R08: ffffffff82405723 R09: ffffed10053c9402

R10: ffffed10053c9402 R11: 1ffff110053c9401 R12: 0000000000000000

R13: ffffc90003c9e538

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/1b90fbc7590124c57a2e590de7fd07eba26606f1Refgit.kernel.org/stable/c/5d356d902e9d5b1aaaaf2326d365340fa8a90c1bRefgit.kernel.org/stable/c/775b00ba23f6f916fe2ac60c5ff7fd0fe4f28d0dRefgit.kernel.org/stable/c/d55e76e11592a1d18a179c7fd34ca1b52632beb3Refgit.kernel.org/stable/c/dba62fa84a8eac44a53a2862de8a40e5bdfa0ae3Refgit.kernel.org/stable/c/dd45e536f47a82e0a405f9a4b6c7ceb367171ee9Refgit.kernel.org/stable/c/e4d503c956a744cb59e509ca5f134cfad423c7a3Refgit.kernel.org/stable/c/fa08a7b61dff8a4df11ff1e84abfc214b487caf7

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53317?

CVE-2023-53317 is a medium-severity vulnerability. It was published on September 16, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53317?

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-2023-53317?

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-2023-53317?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53317 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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