CVE-2026-80594

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Source
https://cve.org/CVERecord?id=CVE-2026-80594
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80594.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-80594
Downstream
Published
2026-08-28T06:48:21.426Z
Modified
2026-08-30T03:48:20.801771640Z
Summary
Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing
Details

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

Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing

The driver parses CDC union descriptors in imspcugetcdcunion_desc() by iterating through the extra descriptor data. However, it does not verify that the bLength of each descriptor is at least 2. A malicious device could provide a descriptor with bLength = 0, leading to an infinite loop in the driver.

Add a check to ensure bLength is at least 2 before proceeding with parsing.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80594.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
628329d52474323938a03826941e166bc7c8eff4
Fixed
67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28
Fixed
6314bd9e2a6b3362998dc85485dd4b0f133a3532
Fixed
76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32
Fixed
e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295
Fixed
b847f2725ef47a26b3d01eca3d54fd811e5a544d
Fixed
383934c249a9817d242d02d30bfbc8defbf0d533
Fixed
bbbe31486cf2d12177462e4a814244c2597c9849
Fixed
d4579af29e67ca8722db0a1194227f8015c8981d

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80594.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.10.0
Fixed
5.10.261
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.97
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80594.json"