Vulnerability-Lookup

GHSA-M8P7-HJG2-3XQJ

Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-02-06 18:30

Details

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

can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error

In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup.

However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty.

To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23082"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-04T17:16:19Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error\n\nIn commit 7352e1d5932a (\"can: gs_usb: gs_usb_receive_bulk_callback(): fix\nURB memory leak\"), the URB was re-anchored before usb_submit_urb() in\ngs_usb_receive_bulk_callback() to prevent a leak of this URB during\ncleanup.\n\nHowever, this patch did not take into account that usb_submit_urb() could\nfail. The URB remains anchored and\nusb_kill_anchored_urbs(\u0026parent-\u003erx_submitted) in gs_can_close() loops\ninfinitely since the anchor list never becomes empty.\n\nTo fix the bug, unanchor the URB when an usb_submit_urb() error occurs,\nalso print an info message.",
  "id": "GHSA-m8p7-hjg2-3xqj",
  "modified": "2026-02-06T18:30:30Z",
  "published": "2026-02-04T18:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23082"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa8a8866c533a150be4763bcb27993603bd5426c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3edc14da81a8d8398682f6e4ab819f09f37c0b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c610b550ccc0438d456dfe1df9f4f36254ccaae3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ce4352057fc5a986c76ece90801b9755e7c6e56c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23082 (GCVE-0-2026-23082)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-06 16:32

Title

can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error

Summary

In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup. However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty. To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/aa8a8866c533a150b…
	https://git.kernel.org/stable/c/ce4352057fc5a986c…
	https://git.kernel.org/stable/c/c610b550ccc0438d4…
	https://git.kernel.org/stable/c/c3edc14da81a8d839…
	https://git.kernel.org/stable/c/79a6d1bfe1148bc92…

Impacted products

Vendor

Product

Version

Linux

Affected: ec5ccc2af9e5b045671f3f604b57512feda8bcc5 , < aa8a8866c533a150be4763bcb27993603bd5426c (git)
Affected: f905bcfa971edb89e398c98957838d8c6381c0c7 , < ce4352057fc5a986c76ece90801b9755e7c6e56c (git)
Affected: 08624b7206ddb9148eeffc2384ebda2c47b6d1e9 , < c610b550ccc0438d456dfe1df9f4f36254ccaae3 (git)
Affected: 9f669a38ca70839229b7ba0f851820850a2fe1f7 , < c3edc14da81a8d8398682f6e4ab819f09f37c0b7 (git)
Affected: 7352e1d5932a0e777e39fa4b619801191f57e603 , < 79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7 (git)

Linux

Affected: 6.19-rc6
Unaffected: 0 , < 6.19-rc6 (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc7 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/usb/gs_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aa8a8866c533a150be4763bcb27993603bd5426c",
              "status": "affected",
              "version": "ec5ccc2af9e5b045671f3f604b57512feda8bcc5",
              "versionType": "git"
            },
            {
              "lessThan": "ce4352057fc5a986c76ece90801b9755e7c6e56c",
              "status": "affected",
              "version": "f905bcfa971edb89e398c98957838d8c6381c0c7",
              "versionType": "git"
            },
            {
              "lessThan": "c610b550ccc0438d456dfe1df9f4f36254ccaae3",
              "status": "affected",
              "version": "08624b7206ddb9148eeffc2384ebda2c47b6d1e9",
              "versionType": "git"
            },
            {
              "lessThan": "c3edc14da81a8d8398682f6e4ab819f09f37c0b7",
              "status": "affected",
              "version": "9f669a38ca70839229b7ba0f851820850a2fe1f7",
              "versionType": "git"
            },
            {
              "lessThan": "79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7",
              "status": "affected",
              "version": "7352e1d5932a0e777e39fa4b619801191f57e603",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/usb/gs_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19-rc6"
            },
            {
              "lessThan": "6.19-rc6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.68",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc7",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.68",
                  "versionStartIncluding": "6.12.67",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.8",
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                },
                {
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                }
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              "negate": false,
              "operator": "OR"
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error\n\nIn commit 7352e1d5932a (\"can: gs_usb: gs_usb_receive_bulk_callback(): fix\nURB memory leak\"), the URB was re-anchored before usb_submit_urb() in\ngs_usb_receive_bulk_callback() to prevent a leak of this URB during\ncleanup.\n\nHowever, this patch did not take into account that usb_submit_urb() could\nfail. The URB remains anchored and\nusb_kill_anchored_urbs(\u0026parent-\u003erx_submitted) in gs_can_close() loops\ninfinitely since the anchor list never becomes empty.\n\nTo fix the bug, unanchor the URB when an usb_submit_urb() error occurs,\nalso print an info message."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T16:32:56.412Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/aa8a8866c533a150be4763bcb27993603bd5426c"
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        },
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        },
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          "url": "https://git.kernel.org/stable/c/c3edc14da81a8d8398682f6e4ab819f09f37c0b7"
        },
        {
          "url": "https://git.kernel.org/stable/c/79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7"
        }
      ],
      "title": "can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23082",
    "datePublished": "2026-02-04T16:08:06.731Z",
    "dateReserved": "2026-01-13T15:37:45.960Z",
    "dateUpdated": "2026-02-06T16:32:56.412Z",
    "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-M8P7-HJG2-3XQJ

CVE-2026-23082 (GCVE-0-2026-23082)

Tags

Sightings

Nomenclature