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CVE-2025-39950 net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR

🗓️ 04 Oct 2025 07:31:10Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

Fix NULL pointer dereference in tcp_ao_finish_connect by checking skb when TCP-AO with TCP_REPAIR.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
astralinux
AstraLinux
Astra Linux – Vulnerability in Linux 6.12
13 Jan 202614:01
–astralinux
bdu_fstec
BDU FSTEC
Linux TCP AO DoS
10 Mar 202600:00
–bdu_fstec
circl
Circl
CVE-2025-39950
4 Oct 202509:46
–circl
cnnvd
CNNVD
Linux Kernel Security Vulnerabilities
4 Oct 202500:00
–cnnvd
cve
CVE
CVE-2025-39950
4 Oct 202507:31
–cve
debiancve
Debian CVE
CVE-2025-39950
4 Oct 202507:31
–debiancve
euvd
EUVD
EUVD-2025-32388
4 Oct 202509:30
–euvd
hp
Hewlett-Packard
HP ThinPro 8.1 SP10 Security Updates
2 Oct 202600:00
–hp
nvd
NVD
CVE-2025-39950
4 Oct 202508:15
–nvd
nessus
Tenable Nessus
openSUSE 16 Security Update : kernel (openSUSE-SU-2025-20091-1)
2 Dec 202500:00
–nessus
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/tcp_ao.c"
    ],
    "versions": [
      {
        "version": "7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f",
        "lessThan": "5f445eb259906b61a518487a790e11d07d31738c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f",
        "lessThan": "993b734d31ab804747ac961b1ee664b023c3b5fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f",
        "lessThan": "2e7bba08923ebc675b1f0e0e0959e68e53047838",
        "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/tcp_ao.c"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.49",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.9",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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