github - ghsa-pqjx-v84v-r7r4

GHSA-PQJX-V84V-R7R4

Vulnerability from github – Published: 2025-12-30 15:30 – Updated: 2025-12-30 15:30

Details

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

net: broadcom: bcm4908_enet: update TX stats after actual transmission

Queueing packets doesn't guarantee their transmission. Update TX stats after hardware confirms consuming submitted data.

This also fixes a possible race and NULL dereference. bcm4908_enet_start_xmit() could try to access skb after freeing it in the bcm4908_enet_poll_tx().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50877"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:16:02Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: broadcom: bcm4908_enet: update TX stats after actual transmission\n\nQueueing packets doesn\u0027t guarantee their transmission. Update TX stats\nafter hardware confirms consuming submitted data.\n\nThis also fixes a possible race and NULL dereference.\nbcm4908_enet_start_xmit() could try to access skb after freeing it in\nthe bcm4908_enet_poll_tx().",
  "id": "GHSA-pqjx-v84v-r7r4",
  "modified": "2025-12-30T15:30:29Z",
  "published": "2025-12-30T15:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50877"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2adedc80faec243ede55355e57142110d6f46e08"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9589e18a60c55c76772a38117ef9a16b942e56b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef3556ee16c68735ec69bd08df41d1cd83b14ad3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50877 (GCVE-0-2022-50877)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:23 – Updated: 2025-12-30 12:23

Title

net: broadcom: bcm4908_enet: update TX stats after actual transmission

Summary

In the Linux kernel, the following vulnerability has been resolved: net: broadcom: bcm4908_enet: update TX stats after actual transmission Queueing packets doesn't guarantee their transmission. Update TX stats after hardware confirms consuming submitted data. This also fixes a possible race and NULL dereference. bcm4908_enet_start_xmit() could try to access skb after freeing it in the bcm4908_enet_poll_tx().

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c9589e18a60c55c76…
	https://git.kernel.org/stable/c/2adedc80faec243ed…
	https://git.kernel.org/stable/c/ef3556ee16c68735e…

Impacted products

Vendor

Product

Version

Linux

Affected: 4feffeadbcb2e5b11cbbf191a33c245b74a5837b , < c9589e18a60c55c76772a38117ef9a16b942e56b (git)
Affected: 4feffeadbcb2e5b11cbbf191a33c245b74a5837b , < 2adedc80faec243ede55355e57142110d6f46e08 (git)
Affected: 4feffeadbcb2e5b11cbbf191a33c245b74a5837b , < ef3556ee16c68735ec69bd08df41d1cd83b14ad3 (git)

Linux

Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.77 , ≤ 5.15.* (semver)
Unaffected: 6.0.7 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bcm4908_enet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c9589e18a60c55c76772a38117ef9a16b942e56b",
              "status": "affected",
              "version": "4feffeadbcb2e5b11cbbf191a33c245b74a5837b",
              "versionType": "git"
            },
            {
              "lessThan": "2adedc80faec243ede55355e57142110d6f46e08",
              "status": "affected",
              "version": "4feffeadbcb2e5b11cbbf191a33c245b74a5837b",
              "versionType": "git"
            },
            {
              "lessThan": "ef3556ee16c68735ec69bd08df41d1cd83b14ad3",
              "status": "affected",
              "version": "4feffeadbcb2e5b11cbbf191a33c245b74a5837b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bcm4908_enet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.77",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.7",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: broadcom: bcm4908_enet: update TX stats after actual transmission\n\nQueueing packets doesn\u0027t guarantee their transmission. Update TX stats\nafter hardware confirms consuming submitted data.\n\nThis also fixes a possible race and NULL dereference.\nbcm4908_enet_start_xmit() could try to access skb after freeing it in\nthe bcm4908_enet_poll_tx()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:23:17.466Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c9589e18a60c55c76772a38117ef9a16b942e56b"
        },
        {
          "url": "https://git.kernel.org/stable/c/2adedc80faec243ede55355e57142110d6f46e08"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef3556ee16c68735ec69bd08df41d1cd83b14ad3"
        }
      ],
      "title": "net: broadcom: bcm4908_enet: update TX stats after actual transmission",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50877",
    "datePublished": "2025-12-30T12:23:17.466Z",
    "dateReserved": "2025-12-30T12:06:07.137Z",
    "dateUpdated": "2025-12-30T12:23:17.466Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-PQJX-V84V-R7R4

CVE-2022-50877 (GCVE-0-2022-50877)

Tags

Sightings

Nomenclature