CVE-2026-80594

Unknown

Last modified

CVE-2026-80594 is a vulnerability of currently unknown severity. 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 ims_pcu_get_cdc_union_desc() by iterating through the extra descriptor data. However, it does not verify that the bLength of each descriptor is at least 2.

Description

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 ims_pcu_get_cdc_union_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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 628329d52474323938a03826941e166bc7c8eff4, < 67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28; >= 628329d52474323938a03826941e166bc7c8eff4, < 6314bd9e2a6b3362998dc85485dd4b0f133a3532; >= 628329d52474323938a03826941e166bc7c8eff4, < 76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32; >= 628329d52474323938a03826941e166bc7c8eff4, < e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295; >= 628329d52474323938a03826941e166bc7c8eff4, < b847f2725ef47a26b3d01eca3d54fd811e5a544d; >= 628329d52474323938a03826941e166bc7c8eff4, < 383934c249a9817d242d02d30bfbc8defbf0d533; >= 628329d52474323938a03826941e166bc7c8eff4, < bbbe31486cf2d12177462e4a814244c2597c9849; >= 628329d52474323938a03826941e166bc7c8eff4, < d4579af29e67ca8722db0a1194227f8015c8981d
LinuxLinux3.10

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80594?
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 ims_pcu_get_cdc_union_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.
How severe is CVE-2026-80594?
Severity scoring for CVE-2026-80594 is pending analysis.
How do I fix CVE-2026-80594?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST