Bug 2376048 (CVE-2025-38096)

Summary:	CVE-2025-38096 kernel: Linux Kernel: Denial of Service in iwlwifi due to improper firmware error handling
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in the Linux kernel's wireless (iwlwifi) component. This vulnerability occurs when the system's wireless firmware encounters an error and is attempting to restart. During this critical period, an internal function, iwl_trans_reclaim, issues an unnecessary warning instead of silently recovering. This can lead to system instability, potentially causing a denial of service (DoS) where the system becomes unresponsive or crashes. A local attacker with low privileges could exploit this to impact system availability.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-07-03 09:02:16 UTC

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: don't warn when if there is a FW error

iwl_trans_reclaim is warning if it is called when the FW is not alive.
But if it is called when there is a pending restart, i.e. after a FW
error, there is no need to warn, instead - return silently.

Comment 1 Avinash Hanwate 2025-07-03 18:59:06 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025070303-CVE-2025-38096-ae58@gregkh/T