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CVE-2025-38346

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix UAF when lookup kallsym after ftrace disabled The following issue happens with a buggy module: BUG: unable to hand…

Published Jul 10, 2025CWE-416EPSS 0.20%

Overview

CVE-2025-38346 is a high-severity vulnerability. It was published on July 10, 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:

ftrace: Fix UAF when lookup kallsym after ftrace disabled

The following issue happens with a buggy module:

BUG: unable to handle page fault for address: ffffffffc05d0218

PGD 1bd66f067 P4D 1bd66f067 PUD 1bd671067 PMD 101808067 PTE 0

Oops: Oops: 0000 [#1] SMP KASAN PTI

Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS

RIP: 0010:sized_strscpy+0x81/0x2f0

RSP: 0018:ffff88812d76fa08 EFLAGS: 00010246

RAX: 0000000000000000 RBX: ffffffffc0601010 RCX: dffffc0000000000

RDX: 0000000000000038 RSI: dffffc0000000000 RDI: ffff88812608da2d

RBP: 8080808080808080 R08: ffff88812608da2d R09: ffff88812608da68

R10: ffff88812608d82d R11: ffff88812608d810 R12: 0000000000000038

R13: ffff88812608da2d R14: ffffffffc05d0218 R15: fefefefefefefeff

FS: 00007fef552de740(0000) GS:ffff8884251c7000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: ffffffffc05d021

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/03a162933c4a03b9f1a84f7d8482903c7e1e11bbRefgit.kernel.org/stable/c/6805582abb720681dd1c87ff677f155dcf4e86c9Refgit.kernel.org/stable/c/83a692a9792aa86249d68a8ac0b9d55ecdd255faRefgit.kernel.org/stable/c/8690cd3258455bbae64f809e1d3ee0f043661c71Refgit.kernel.org/stable/c/8e89c17dc8970c5f71a3a991f5724d4c8de42d8cRefgit.kernel.org/stable/c/d064c68781c19f378af1ae741d9132d35d24b2bbRefgit.kernel.org/stable/c/f78a786ad9a5443a29eef4dae60cde85b7375129Refgit.kernel.org/stable/c/f914b52c379c12288b7623bb814d0508dbe7481dReflists.debian.org/debian-lts-announce/2025/10/msg00007.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38346?

CVE-2025-38346 is a high-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38346?

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-2025-38346?

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-2025-38346?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38346 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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