github - ghsa-vjpc-6q33-m3mr

GHSA-VJPC-6Q33-M3MR

Vulnerability from github – Published: 2025-07-10 09:32 – Updated: 2025-11-20 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

net: drv: netdevsim: don't napi_complete() from netpoll

netdevsim supports netpoll. Make sure we don't call napi_complete() from it, since it may not be scheduled. Breno reports hitting a warning in napi_complete_done():

WARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560 __napi_poll+0x2d8/0x3a0 handle_softirqs+0x1fe/0x710

This is presumably after netpoll stole the SCHED bit prematurely.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38270"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-10T08:15:25Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: drv: netdevsim: don\u0027t napi_complete() from netpoll\n\nnetdevsim supports netpoll. Make sure we don\u0027t call napi_complete()\nfrom it, since it may not be scheduled. Breno reports hitting a\nwarning in napi_complete_done():\n\nWARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560\n  __napi_poll+0x2d8/0x3a0\n  handle_softirqs+0x1fe/0x710\n\nThis is presumably after netpoll stole the SCHED bit prematurely.",
  "id": "GHSA-vjpc-6q33-m3mr",
  "modified": "2025-11-20T18:31:00Z",
  "published": "2025-07-10T09:32:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38270"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1264971017b4d7141352a7fe29021bdfce5d885d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6837dd877270c57689bd866de9f3de14172c2439"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8ff2e362d901200a1075c3ca9c56d9c7bbef389"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-38270 (GCVE-0-2025-38270)

Vulnerability from cvelistv5 – Published: 2025-07-10 07:41 – Updated: 2025-07-28 04:16

Summary

In the Linux kernel, the following vulnerability has been resolved: net: drv: netdevsim: don't napi_complete() from netpoll netdevsim supports netpoll. Make sure we don't call napi_complete() from it, since it may not be scheduled. Breno reports hitting a warning in napi_complete_done(): WARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560 __napi_poll+0x2d8/0x3a0 handle_softirqs+0x1fe/0x710 This is presumably after netpoll stole the SCHED bit prematurely.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/a8ff2e362d901200a…
	https://git.kernel.org/stable/c/6837dd877270c5768…
	https://git.kernel.org/stable/c/1264971017b4d7141…

Impacted products

Vendor

Product

Version

Linux

Affected: 3762ec05a9fbda16aaaa2568df679ab8ad13f38d , < a8ff2e362d901200a1075c3ca9c56d9c7bbef389 (git)
Affected: 3762ec05a9fbda16aaaa2568df679ab8ad13f38d , < 6837dd877270c57689bd866de9f3de14172c2439 (git)
Affected: 3762ec05a9fbda16aaaa2568df679ab8ad13f38d , < 1264971017b4d7141352a7fe29021bdfce5d885d (git)

Linux

Affected: 6.10
Unaffected: 0 , < 6.10 (semver)
Unaffected: 6.12.34 , ≤ 6.12.* (semver)
Unaffected: 6.15.3 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/netdevsim/netdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "3762ec05a9fbda16aaaa2568df679ab8ad13f38d",
              "versionType": "git"
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              "lessThan": "6837dd877270c57689bd866de9f3de14172c2439",
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              "version": "3762ec05a9fbda16aaaa2568df679ab8ad13f38d",
              "versionType": "git"
            },
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              "lessThan": "1264971017b4d7141352a7fe29021bdfce5d885d",
              "status": "affected",
              "version": "3762ec05a9fbda16aaaa2568df679ab8ad13f38d",
              "versionType": "git"
            }
          ]
        },
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          "product": "Linux",
          "programFiles": [
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          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
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              "version": "0",
              "versionType": "semver"
            },
            {
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            },
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              "version": "6.16",
              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "cpeApplicability": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: drv: netdevsim: don\u0027t napi_complete() from netpoll\n\nnetdevsim supports netpoll. Make sure we don\u0027t call napi_complete()\nfrom it, since it may not be scheduled. Breno reports hitting a\nwarning in napi_complete_done():\n\nWARNING: CPU: 14 PID: 104 at net/core/dev.c:6592 napi_complete_done+0x2cc/0x560\n  __napi_poll+0x2d8/0x3a0\n  handle_softirqs+0x1fe/0x710\n\nThis is presumably after netpoll stole the SCHED bit prematurely."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:16:51.162Z",
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    "assignerShortName": "Linux",
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    "datePublished": "2025-07-10T07:41:52.475Z",
    "dateReserved": "2025-04-16T04:51:23.998Z",
    "dateUpdated": "2025-07-28T04:16:51.162Z",
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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

GHSA-VJPC-6Q33-M3MR

CVE-2025-38270 (GCVE-0-2025-38270)

Tags

Sightings

Nomenclature