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CVE-2025-39859

🗓️ 19 Sep 2025 15:26:29Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 79 Views

Fix use-after-free in ptp_ocp by always calling timer_delete_sync in detach to deactivate the watchdog and prevent access after devlink is freed.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
astralinux
AstraLinux
Astra Linux – Vulnerability in Linux 5.10
20 May 202605:53
–astralinux
bdu_fstec
BDU FSTEC
Linux ptp_ocp_detach Heap Buffer Overflow DoS
5 Nov 202500:00
–bdu_fstec
cgr
Chainguard
CVE-2025-39859 vulnerabilities
23 Jan 202619:24
–cgr
circl
Circl
CVE-2025-39859
19 Mar 202600:00
–circl
cnnvd
CNNVD
Linux Kernel Security Vulnerabilities
18 Sep 202516:00
–cnnvd
cvelist
Cvelist
CVE-2025-39859 ptp: ocp: fix use-after-free bugs causing by ptp_ocp_watchdog
19 Sep 202515:26
–cvelist
debiancve
Debian CVE
CVE-2025-39859
19 Sep 202515:26
–debiancve
euvd
EUVD
EUVD-2025-30341
3 Oct 202520:07
–euvd
mscve
Microsoft CVE
ptp: ocp: fix use-after-free bugs causing by ptp_ocp_watchdog
21 Sep 202508:02
–mscve
nvd
NVD
CVE-2025-39859
19 Sep 202516:15
–nvd
Rows per page
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange5.15–6.16.6
linuxlinux_kernelMatch6.17rc1
linuxlinux_kernelMatch6.17rc2
linuxlinux_kernelMatch6.17rc3
linuxlinux_kernelMatch6.17rc4
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/ptp/ptp_ocp.c"
    ],
    "versions": [
      {
        "version": "773bda96492153e11d21eb63ac814669b51fc701",
        "lessThan": "e2a6eabe5304a789b7d40ce2576cd80154255e51",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "773bda96492153e11d21eb63ac814669b51fc701",
        "lessThan": "aad70bdfc8244616e48c434310cab241a3f17781",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "773bda96492153e11d21eb63ac814669b51fc701",
        "lessThan": "f10d3c7267ac7387a5129d5506c3c5f2460cfd9b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "773bda96492153e11d21eb63ac814669b51fc701",
        "lessThan": "8bf935cf789872350b04c1a6468b0a509f67afb2",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/ptp/ptp_ocp.c"
    ],
    "versions": [
      {
        "version": "5.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.160",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.114",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.6",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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21 Oct 2026 13:18Current
7High risk
Vulners AI Score7
CVSS 3.17.8
EPSS0.00195
SSVC
79