CVE-2026-64343 USB: ldusb: fix use-after-free on disconnect race

🗓️ 25 Jul 2026 08:50:05Reported by LinuxType

In the Linux kernel, the following vulnerability has been resolved: USB: ldusb: fix use-after-free on disconnect race mutex_unlock() may access the mutex structure after releasing the lockand therefore cannot be used to manage lifetime of objects ...

Reporter	Title	Published	Views	Family All 6
CVE	CVE-2026-64343	25 Jul 202608:50	–	cve
Debian CVE	CVE-2026-64343	25 Jul 202608:50	–	debiancve
EUVD	EUVD-2026-48887	25 Jul 202608:50	–	euvd
NVD	CVE-2026-64343	25 Jul 202610:17	–	nvd
OSV	DEBIAN-CVE-2026-64343	25 Jul 202616:48	–	osv
Positive Technologies	PT-2026-64564	25 Jul 202600:00	–	ptsecurity

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/usb/misc/ldusb.c"
    ],
    "versions": [
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "fc55923a972e715f9a27187b47d4920709e23d85",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "e5a9bdce4bfd3e2226b5f3df5fb8385d6935ee69",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "af59829e67e11ba2511a9f8e4b9111afc7d1f550",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "02ca08fff74cf9b0a3c4d2cacde1c6edeeb95bb4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "d8f69404e1d671326f86d378b9f5bfbd56490e9d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "2107a4fc8ff1cf1d52f416c1e5cc8e97413a5915",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "a3e794136ab5e3ad1e7019175a4b837aec86db4b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ce0d7d3f575fc1ba6a89c3c651e710355590daff",
        "lessThan": "19bdfc7b3c179331eafa423d87e1336f43bbfeb8",
        "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/usb/misc/ldusb.c"
    ],
    "versions": [
      {
        "version": "2.6.26",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.26",
        "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": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/2107a4fc8ff1cf1d52f416c1e5cc8e97413a5915
git	www.git.kernel.org/stable/c/a3e794136ab5e3ad1e7019175a4b837aec86db4b
git	www.git.kernel.org/stable/c/02ca08fff74cf9b0a3c4d2cacde1c6edeeb95bb4
git	www.git.kernel.org/stable/c/af59829e67e11ba2511a9f8e4b9111afc7d1f550
git	www.git.kernel.org/stable/c/e5a9bdce4bfd3e2226b5f3df5fb8385d6935ee69
git	www.git.kernel.org/stable/c/19bdfc7b3c179331eafa423d87e1336f43bbfeb8
git	www.git.kernel.org/stable/c/fc55923a972e715f9a27187b47d4920709e23d85
git	www.git.kernel.org/stable/c/d8f69404e1d671326f86d378b9f5bfbd56490e9d

25 Jul 2026 08:50Current

EPSS0.0022