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CVE-2026-74257 sockmap: Fix use-after-free in udp_bpf_recvmsg()

🗓️ 15 Aug 2026 05:57:35Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 52 Views

Linux kernel sockmap use-after-free in udp_bpf_recvmsg fixed by re-adding lock_sock serialization.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/udp_bpf.c"
    ],
    "versions": [
      {
        "version": "9f2470fbc4cb4583c080bb729a998933ba61aca4",
        "lessThan": "81567d2b3f4dc4fc32f8b61433738bce2cafd4a1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9f2470fbc4cb4583c080bb729a998933ba61aca4",
        "lessThan": "39d44ed6904bfa9a1c6d0538672dd50c7b85520e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9f2470fbc4cb4583c080bb729a998933ba61aca4",
        "lessThan": "c010995b29c8939c6aa69e3cb26f8dbee163d156",
        "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/ipv4/udp_bpf.c"
    ],
    "versions": [
      {
        "version": "5.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Aug 2026 05:45Current
CVSS 3.17.8
EPSS0.00168
52