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CVE-2025-23150

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ext4: fix off-by-one error in do_split Syzkaller detected a use-after-free issue in ext4_insert_dentry that was caused by out-o…

Published May 1, 2025CWE-193EPSS 0.23%

Overview

CVE-2025-23150 is a high-severity vulnerability. It was published on May 1, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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 off-by-one error in do_split

Syzkaller detected a use-after-free issue in ext4_insert_dentry that was

caused by out-of-bounds access due to incorrect splitting in do_split.

BUG: KASAN: use-after-free in ext4_insert_dentry+0x36a/0x6d0 fs/ext4/namei.c:2109

Write of size 251 at addr ffff888074572f14 by task syz-executor335/5847

CPU: 0 UID: 0 PID: 5847 Comm: syz-executor335 Not tainted 6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024

Call Trace:

<TASK>

__dump_stack lib/dump_stack.c:94 [inline]

dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120

print_address_description mm/kasan/report.c:377 [inline]

print_report+0x169/0x550 mm/kasan/report.c:488

kasan_report+0x143/0x180 mm/kasan/report.c:601

kasan_check_range+0x282/0x290 mm/kasan/generic.c:189

__asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106

ext4_insert_dentry+0x36a/0x6d0

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/16d9067f00e3a7d1df7c3aa9c20d214923d27e10Refgit.kernel.org/stable/c/17df39f455f1289319d4d09e4826aa46852ffd17Refgit.kernel.org/stable/c/2883e9e74f73f9265e5f8d1aaaa89034b308e433Refgit.kernel.org/stable/c/2eeb1085bf7bd5c7ba796ca4119925fa5d336a3fRefgit.kernel.org/stable/c/35d0aa6db9d93307085871ceab8a729594a98162Refgit.kernel.org/stable/c/515c34cff899eb5dae6aa7eee01c1295b07d81afRefgit.kernel.org/stable/c/94824ac9a8aaf2fb3c54b4bdde842db80ffa555dRefgit.kernel.org/stable/c/ab0cc5c25552ae0d20eae94b40a93be11b080fc5Refgit.kernel.org/stable/c/b96bd2c3db26ad0daec5b78c85c098b53900e2e1Reflists.debian.org/debian-lts-announce/2025/05/msg00030.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-23150?

CVE-2025-23150 is a high-severity vulnerability. It was published on May 1, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-23150?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-23150?

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-2025-23150?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-23150 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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