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CVE-2026-80977 net: skbuff: don't touch shared zerocopy state in skb_tx_error()

🗓️ 11 Sep 2026 19:42:38Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 12 Views

Linux kernel skb_tx_error() clears shared zerocopy state on cloned skbs causing use-after-free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-80977
11 Sep 202619:42
cve
debiancve
Debian CVE
CVE-2026-80977
11 Sep 202619:42
debiancve
euvd
EUVD
EUVD-2026-76300
11 Sep 202619:42
euvd
nvd
NVD
CVE-2026-80977
11 Sep 202620:19
nvd
osv
OSV
DEBIAN-CVE-2026-80977
11 Sep 202620:19
osv
ptsecurity
Positive Technologies
PT-2026-90107
11 Sep 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-80977
11 Sep 202621:54
redhatcve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/skbuff.c"
    ],
    "versions": [
      {
        "version": "25121173f7b1e4ac3fc692df6e7b8c52ec36abba",
        "lessThan": "15aa81b390d401abf4b8211042470e9e92e3b7fb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25121173f7b1e4ac3fc692df6e7b8c52ec36abba",
        "lessThan": "288f9970670841044ab030104fa6b6ed159949d0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25121173f7b1e4ac3fc692df6e7b8c52ec36abba",
        "lessThan": "0370da114a9bc044e248b85c6809d1b5e0c1f7f9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "25121173f7b1e4ac3fc692df6e7b8c52ec36abba",
        "lessThan": "f66bdb1cc0fcd227a062378f8be0b5873aa5600a",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/skbuff.c"
    ],
    "versions": [
      {
        "version": "3.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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