Vulnerability-Lookup

FKIE_CVE-2025-40149

Vulnerability from fkie_nvd - Published: 2025-11-12 11:15 - Updated: 2026-02-26 15:51

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the only ->ndo_sk_get_lower_dev() user is bond_sk_get_lower_dev(), which uses RCU.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/13159c7125636371543a82cb7bbae00ab36730cc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2b1bef126bbb8d0da51491357559126d567c1dee	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e37ca0092ddace60833790b4ad7a390408fb1be9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f09cd209359a23f88d4f3fa3d2379d057027e53c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "312A3393-F2B5-4A95-B998-B763A195F2DB",
              "versionEndExcluding": "5.15.199",
              "versionStartIncluding": "4.18",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E135B7E2-61FC-4DC1-8570-ABD67894FFDE",
              "versionEndExcluding": "6.1.161",
              "versionStartIncluding": "5.16",
              "vulnerable": true
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().\n\nget_netdev_for_sock() is called during setsockopt(),\nso not under RCU.\n\nUsing sk_dst_get(sk)-\u003edev could trigger UAF.\n\nLet\u0027s use __sk_dst_get() and dst_dev_rcu().\n\nNote that the only -\u003endo_sk_get_lower_dev() user is\nbond_sk_get_lower_dev(), which uses RCU."
    }
  ],
  "id": "CVE-2025-40149",
  "lastModified": "2026-02-26T15:51:45.843",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-11-12T11:15:44.817",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
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    },
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    },
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    },
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    },
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      "url": "https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
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          "lang": "en",
          "value": "CWE-416"
        }
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-40149 (GCVE-0-2025-40149)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:23 – Updated: 2026-02-06 16:31

Title

tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2b1bef126bbb8d0da…
	https://git.kernel.org/stable/c/e37ca0092ddace608…
	https://git.kernel.org/stable/c/13159c71256363715…
	https://git.kernel.org/stable/c/f09cd209359a23f88…
	https://git.kernel.org/stable/c/feb474ddbf26b51f4…
	https://git.kernel.org/stable/c/c65f27b9c3be22699…

Impacted products

Vendor

Product

Version

Linux

Affected: e8f69799810c32dd40c6724d829eccc70baad07f , < 2b1bef126bbb8d0da51491357559126d567c1dee (git)
Affected: e8f69799810c32dd40c6724d829eccc70baad07f , < e37ca0092ddace60833790b4ad7a390408fb1be9 (git)
Affected: e8f69799810c32dd40c6724d829eccc70baad07f , < 13159c7125636371543a82cb7bbae00ab36730cc (git)
Affected: e8f69799810c32dd40c6724d829eccc70baad07f , < f09cd209359a23f88d4f3fa3d2379d057027e53c (git)
Affected: e8f69799810c32dd40c6724d829eccc70baad07f , < feb474ddbf26b51f462ae2e60a12013bdcfc5407 (git)
Affected: e8f69799810c32dd40c6724d829eccc70baad07f , < c65f27b9c3be2269918e1cbad6d8884741f835c5 (git)

Linux

Affected: 4.18
Unaffected: 0 , < 4.18 (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.161 , ≤ 6.1.* (semver)
Unaffected: 6.6.121 , ≤ 6.6.* (semver)
Unaffected: 6.12.66 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tls/tls_device.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-40149

CVE-2025-40149 (GCVE-0-2025-40149)

Tags

Sightings

Nomenclature