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CVE-2026-23239 espintcp: Fix race condition in espintcp_close()

🗓️ 10 Mar 2026 17:28:26Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Fix race in espintcp_close by replacing cancel_work_sync with disable_work_sync to prevent worker dereferencing freed resources.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/xfrm/espintcp.c"
    ],
    "versions": [
      {
        "version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
        "lessThan": "f7ad8b1d0e421c524604d5076b73232093490d5c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
        "lessThan": "664e9df53226b4505a0894817ecad2c610ab11d8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
        "lessThan": "022ff7f347588de6e17879a1da6019647b21321b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
        "lessThan": "e1512c1db9e8794d8d130addd2615ec27231d994",
        "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/xfrm/espintcp.c"
    ],
    "versions": [
      {
        "version": "5.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.16",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.6",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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