Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2025-37738

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ext4: ignore xattrs past end Once inside 'ext4_xattr_inode_dec_ref_all' we should ignore xattrs entries past the 'end' entry.

Published May 1, 2025CWE-416EPSS 0.22%

Overview

CVE-2025-37738 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: ignore xattrs past end

Once inside 'ext4_xattr_inode_dec_ref_all' we should

ignore xattrs entries past the 'end' entry.

This fixes the following KASAN reported issue:

==================================================================

BUG: KASAN: slab-use-after-free in ext4_xattr_inode_dec_ref_all+0xb8c/0xe90

Read of size 4 at addr ffff888012c120c4 by task repro/2065

CPU: 1 UID: 0 PID: 2065 Comm: repro Not tainted 6.13.0-rc2+ #11

Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014

Call Trace:

<TASK>

dump_stack_lvl+0x1fd/0x300

? tcp_gro_dev_warn+0x260/0x260

? _printk+0xc0/0x100

? read_lock_is_recursive+0x10/0x10

? irq_work_queue+0x72/0xf0

? __virt_addr_valid+0x17b/0x4b0

print_address_description+0x78/0x390

print_report+0x107/0x1f0

? __virt_addr_valid+0x17b/0x4b0

? __virt_addr_valid+0x3ff/0x4b0

? __phys_addr+0xb5/0x160

? ext4_xattr_inode_

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/362a90cecd36e8a5c415966d0b75b04a0270e4ddRefgit.kernel.org/stable/c/3bc6317033f365ce578eb6039445fb66162722fdRefgit.kernel.org/stable/c/6aff941cb0f7d0c897c3698ad2e30672709135e3Refgit.kernel.org/stable/c/76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3Refgit.kernel.org/stable/c/836e625b03a666cf93ff5be328c8cb30336db872Refgit.kernel.org/stable/c/c8e008b60492cf6fd31ef127aea6d02fd3d314cdRefgit.kernel.org/stable/c/cf9291a3449b04688b81e32621e88de8f4314b54Refgit.kernel.org/stable/c/eb59cc31b6ea076021d14b04e7faab1636b87d0eRefgit.kernel.org/stable/c/f737418b6de31c962c7192777ee4018906975383Reflists.debian.org/debian-lts-announce/2025/05/msg00030.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-37738?

CVE-2025-37738 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-2025-37738?

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-2025-37738?

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-2025-37738?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-37738 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.

Related HIGH CVEs from 2025

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999