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FKIE_CVE-2026-80594

Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-08-28 08:16
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/input/misc/ims-pcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "6314bd9e2a6b3362998dc85485dd4b0f133a3532",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "b847f2725ef47a26b3d01eca3d54fd811e5a544d",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "383934c249a9817d242d02d30bfbc8defbf0d533",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "bbbe31486cf2d12177462e4a814244c2597c9849",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            },
            {
              "lessThan": "d4579af29e67ca8722db0a1194227f8015c8981d",
              "status": "affected",
              "version": "628329d52474323938a03826941e166bc7c8eff4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/input/misc/ims-pcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: ims-pcu - fix potential infinite loop in CDC union descriptor parsing\n\nThe driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()\nby iterating through the extra descriptor data. However, it does not\nverify that the bLength of each descriptor is at least 2. A malicious\ndevice could provide a descriptor with bLength = 0, leading to an\ninfinite loop in the driver.\n\nAdd a check to ensure bLength is at least 2 before proceeding with\nparsing."
    }
  ],
  "id": "CVE-2026-80594",
  "lastModified": "2026-08-28T08:16:43.060",
  "metrics": {},
  "published": "2026-08-28T08:16:43.060",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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