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CVE-2026-23058 can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak

🗓️ 04 Feb 2026 16:07:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 45 Views

Fix URB memory leak in ems_usb_read_bulk_callback by anchoring completed URBs to the rx_submitted anchor.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/can/usb/ems_usb.c"
    ],
    "versions": [
      {
        "version": "702171adeed3607ee9603ec30ce081411e36ae42",
        "lessThan": "e2c71030dc464d437110bcfb367c493fd402bddb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "702171adeed3607ee9603ec30ce081411e36ae42",
        "lessThan": "f48eabd15194b216030b32445f44230df95f5fe0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "702171adeed3607ee9603ec30ce081411e36ae42",
        "lessThan": "61e6d3674c3d1da1475dc207b3e75c55d678d18e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "702171adeed3607ee9603ec30ce081411e36ae42",
        "lessThan": "e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "702171adeed3607ee9603ec30ce081411e36ae42",
        "lessThan": "46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "702171adeed3607ee9603ec30ce081411e36ae42",
        "lessThan": "68c62b3e53901846b5f68c5a8bade72a5d9c0b87",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "702171adeed3607ee9603ec30ce081411e36ae42",
        "lessThan": "0ce73a0eb5a27070957b67fd74059b6da89cc516",
        "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/ems_usb.c"
    ],
    "versions": [
      {
        "version": "2.6.32",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.32",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.249",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.199",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.162",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.122",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.68",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.8",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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