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CVE-2026-74742 veth: fix queue index used to wake the peer txq in veth_poll

🗓️ 26 Aug 2026 14:36:53Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

veth_poll uses wrong queue index to wake peer TX queue, causing indefinite queue stall without XDP.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-74742
26 Aug 202614:36
cve
euvd
EUVD
EUVD-2026-66572
26 Aug 202614:36
euvd
nvd
NVD
CVE-2026-74742
26 Aug 202615:16
nvd
osv
OSV
DEBIAN-CVE-2026-74742
26 Aug 202620:47
osv
ptsecurity
Positive Technologies
PT-2026-82122
26 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/veth.c"
    ],
    "versions": [
      {
        "version": "9fe31b3f314534e238aa6d0b6fb492134cbcf8be",
        "lessThan": "b662a1fb4f3a5ea19bac24eea8315b1d05be51e7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "dc82a33297fc2c58cb0b2b008d728668d45c0f6a",
        "lessThan": "73f8dd22b1e533a99ecc3f9b5de6c6daccaecace",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "dc82a33297fc2c58cb0b2b008d728668d45c0f6a",
        "lessThan": "90bb11fb29d3c55a2c46dc7c386d096b286e7fcf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "dc82a33297fc2c58cb0b2b008d728668d45c0f6a",
        "lessThan": "60db47f02bfa2aa688938aa199117ec4f8e31d23",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.12.61",
        "lessThan": "6.12.105",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/veth.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.105",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.46",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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