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CVE-2026-74456 can: peak_usb: peak_usb_start(): fix double free of transfer buffer on URB submit error

🗓️ 15 Aug 2026 12:26:58Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 32 Views

peak_usb_start() double frees URB transfer buffer via redundant kfree before URB_FREE_BUFFER-triggered usb_free_urb().

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-74456
15 Aug 202612:26
cve
debian
Debian
[SECURITY] [DSA 6466-1] linux security update
25 Aug 202620:09
debian
debiancve
Debian CVE
CVE-2026-74456
15 Aug 202612:26
debiancve
nessus
Tenable Nessus
Debian dsa-6466 : ata-modules-6.12.101+deb13-armmp-di - security update
25 Aug 202600:00
nessus
nessus
Tenable Nessus
Photon OS 5.0: Linux PHSA-2026-5.0-92-0952
12 Aug 202600:00
nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-74456
15 Aug 202600:00
nessus
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
4 Sep 202600:00
oraclelinux
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
4 Sep 202600:00
oraclelinux
euvd
EUVD
EUVD-2026-59649
15 Aug 202612:26
euvd
nvd
NVD
CVE-2026-74456
15 Aug 202613:17
nvd
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/can/usb/peak_usb/pcan_usb_core.c"
    ],
    "versions": [
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "914c3b8fa175acf8476ad31cf04e308638e3578e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "5f2fa5840c34d3a558c57855781be75e03bef752",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "b9088d581fff971a7eb1628f8dcc30df6cfef4dc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "525640b93d3e5f82f4ebea4730f4e0cf799522ba",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "4bb3325075138dd5346b71589a959878b564dc0b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "92d0de80ca2223b9c7da78020155b6cb27824cc0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "dfb17bf04a764462000f11258a7c06aa92d1f261",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d",
        "lessThan": "9b3d5a6d952c38bbcf07f903cbeadefdb56b9bc9",
        "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/net/can/usb/peak_usb/pcan_usb_core.c"
    ],
    "versions": [
      {
        "version": "3.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.265",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.216",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Aug 2026 16:36Current
CVSS 3.17.8
EPSS0.00129
32