CVE-2026-80594Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 628329d52474323938a03826941e166bc7c8eff4 builds before 67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28; 628329d52474323938a03826941e166bc7c8eff4 builds before 6314bd9e2a6b3362998dc85485dd4b0f133a3532; 628329d52474323938a03826941e166bc7c8eff4 builds before 76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32; from 628329d52474323938a03826941e166bc7c8eff4 before e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295; from 628329d52474323938a03826941e166bc7c8eff4 before b847f2725ef47a26b3d01eca3d54fd811e5a544d; 628329d52474323938a03826941e166bc7c8eff4 builds before 383934c249a9817d242d02d30bfbc8defbf0d533; from 628329d52474323938a03826941e166bc7c8eff4 before bbbe31486cf2d12177462e4a814244c2597c9849; from 628329d52474323938a03826941e166bc7c8eff4 before d4579af29e67ca8722db0a1194227f8015c8981d | CNA record |
References
- https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28
- https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532
- https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32
- https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295
- https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d
- https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533
- https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849
- https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.