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CVE-2026-74563 rds: tcp: hold the RCU lock across ipv6_chk_addr() in rds_tcp_laddr_check()

🗓️ 15 Aug 2026 12:28:05Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

Linux kernel RDS TCP holds RCU lock across ipv6_chk_addr() to prevent use-after-free on net_device.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/rds/tcp.c"
    ],
    "versions": [
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "f8a8977af2134a1d91e5f9773cb7d9d53278c830",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "ba95bce5dfe6e2ef602a87e0557225f2934ccb5c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "c4933624a6f416ecfcc31ab58d585da1207a0597",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "76dd48886eeeb5fcf2b837d2f4c3d17eebeac9ef",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "f0d1fb05d70c8a561cd8d0473bcacafa2fc137ff",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "b1d480fce05f857dc438080cd8c9244b84a83494",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "8398bc477d3cb3e2b018a5aaac2bec0f69acda30",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "eee2fa6ab3225192d6d894c54a6fb02ac9efdff6",
        "lessThan": "78f75d632f74b8de0f081a128588f7c37d0d1164",
        "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/rds/tcp.c"
    ],
    "versions": [
      {
        "version": "4.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.265",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.216",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Aug 2026 16:39Current
CVSS 3.17.8
EPSS0.00117
41