CVE-2026-80594 Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing

🗓️ 28 Aug 2026 06:48:21Reported by LinuxType

Infinite loop in Linux kernel ims-pcu driver when parsing CDC union descriptors with bLength 0.

Reporter	Title	Published	Views	Family All 53
AstraLinux	Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15	15 Oct 202615:53	–	astralinux
BDU FSTEC	Linux Heap Buffer Overflow DoS	19 Oct 202600:00	–	bdu_fstec
CVE	CVE-2026-80594	28 Aug 202606:48	–	cve
Debian CVE	CVE-2026-80594	28 Aug 202606:48	–	debiancve
EUVD	EUVD-2026-67470	28 Aug 202606:48	–	euvd
NVD	CVE-2026-80594	28 Aug 202608:16	–	nvd
osv_bell	BELL-CVE-2026-80594	3 Sep 202606:05	–	osv_bell
osv_cve	CVE-2026-80594 Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing	28 Aug 202606:48	–	osv_cve
osv_debian	DEBIAN-CVE-2026-80594	28 Aug 202608:16	–	osv_debian
osv_ubuntu	UBUNTU-CVE-2026-80594	28 Aug 202608:16	–	osv_ubuntu

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/input/misc/ims-pcu.c"
    ],
    "versions": [
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "6314bd9e2a6b3362998dc85485dd4b0f133a3532",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "b847f2725ef47a26b3d01eca3d54fd811e5a544d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "383934c249a9817d242d02d30bfbc8defbf0d533",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "bbbe31486cf2d12177462e4a814244c2597c9849",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "628329d52474323938a03826941e166bc7c8eff4",
        "lessThan": "d4579af29e67ca8722db0a1194227f8015c8981d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/input/misc/ims-pcu.c"
    ],
    "versions": [
      {
        "version": "3.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.261",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28
git	www.git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533
git	www.git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849
git	www.git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295
git	www.git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32
git	www.git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d
git	www.git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532
git	www.git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d

28 Aug 2026 06:48Current

EPSS0.0022