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CVE-2025-38604

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: rtl818x: Kill URBs before clearing tx status queue In rtl8187_stop() move the call of usb_kill_anchored_urbs() before cle…

Published Aug 19, 2025CWE-476EPSS 0.17%

Overview

CVE-2025-38604 is a high-severity vulnerability. It was published on August 19, 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:

wifi: rtl818x: Kill URBs before clearing tx status queue

In rtl8187_stop() move the call of usb_kill_anchored_urbs() before clearing

b_tx_status.queue. This change prevents callbacks from using already freed

skb due to anchor was not killed before freeing such skb.

BUG: kernel NULL pointer dereference, address: 0000000000000080

#PF: supervisor read access in kernel mode

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

PGD 0 P4D 0

Oops: Oops: 0000 [#1] SMP NOPTI

CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Not tainted 6.15.0 #8 PREEMPT(voluntary)

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015

RIP: 0010:ieee80211_tx_status_irqsafe+0x21/0xc0 [mac80211]

Call Trace:

<IRQ>

rtl8187_tx_cb+0x116/0x150 [rtl8187]

__usb_hcd_giveback_urb+0x9d/0x120

usb_giveback_urb_bh+0xbb/0x140

process_one_work+0x19b/0x3c0

bh_worker+0x1a7/0x210

tasklet_action+0x10/0x30

handle_softirqs+0xf0/0x340

__irq_

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/14ca6952691fa8cc91e7644512e6ff24a595283fRefgit.kernel.org/stable/c/16d8fd74dbfca0ea58645cd2fca13be10cae3cddRefgit.kernel.org/stable/c/7858a95566f4ebf59524666683d2dcdba3fca968Refgit.kernel.org/stable/c/789415771422f4fb9f444044f86ecfaec55df1bdRefgit.kernel.org/stable/c/81cfe34d0630de4e23ae804dcc08fb6f861dc37dRefgit.kernel.org/stable/c/8c767727f331fb9455b0f81daad832b5925688cbRefgit.kernel.org/stable/c/c51a45ad9070a6d296174fcbe5c466352836c12bRefgit.kernel.org/stable/c/c73c773b09e313278f9b960303a2809b8440bac6Refgit.kernel.org/stable/c/e64732ebff9e24258e7326f07adbe2f2b990daf8Reflists.debian.org/debian-lts-announce/2025/10/msg00007.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38604?

CVE-2025-38604 is a high-severity vulnerability. It was published on August 19, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38604?

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-2025-38604?

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-2025-38604?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38604 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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