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EUVD-2026-320389

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:40

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:40:17.603003+00:00",
  "id": "EUVD-2026-320389"
}

CVE-2022-50740 (GCVE-0-2022-50740)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:05 – Updated: 2026-05-23 15:25

Title

wifi: ath9k: hif_usb: fix memory leak of urbs in ath9k_hif_usb_dealloc_tx_urbs()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hif_usb: fix memory leak of urbs in ath9k_hif_usb_dealloc_tx_urbs() Syzkaller reports a long-known leak of urbs in ath9k_hif_usb_dealloc_tx_urbs(). The cause of the leak is that usb_get_urb() is called but usb_free_urb() (or usb_put_urb()) is not called inside usb_kill_urb() as urb->dev or urb->ep fields have not been initialized and usb_kill_urb() returns immediately. The patch removes trying to kill urbs located in hif_dev->tx.tx_buf because hif_dev->tx.tx_buf is not supposed to contain urbs which are in pending state (the pending urbs are stored in hif_dev->tx.tx_pending). The tx.tx_lock is acquired so there should not be any changes in the list. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

9 references

URL	Tags
https://git.kernel.org/stable/c/134ae5eba41294eff…
https://git.kernel.org/stable/c/472312fef2b9eccaa…
https://git.kernel.org/stable/c/eddbb8f7620f9f800…
https://git.kernel.org/stable/c/9850791d389b342ae…
https://git.kernel.org/stable/c/c3fb3e9a2c0c1a0fa…
https://git.kernel.org/stable/c/d856f7574bcc1d81d…
https://git.kernel.org/stable/c/c05189a429fdb371d…
https://git.kernel.org/stable/c/08aa0537ec8cf29ce…
https://git.kernel.org/stable/c/c2a94de38c74e86f4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6f0706ef39fecc6bf56d67728fe0c94e26b43e9d , < 134ae5eba41294eff76e4be20d6001b8f0192207 (git) Affected: 795d57a558d106b8a5bc2bd7aeaf707d9a099244 , < 472312fef2b9eccaa03bd59e0ab2527da945e736 (git) Affected: df4318440c1568b7dedc5f7d4e617d0e297a1313 , < eddbb8f7620f9f8008b090a6e10c460074ca575a (git) Affected: a9990ed2d7ca9339d37c7f67d6f5cb298c3f1b34 , < 9850791d389b342ae6e573fe8198db0b4d338352 (git) Affected: 03fb92a432ea5abe5909bca1455b7e44a9380480 , < c3fb3e9a2c0c1a0fa492d90eb19bcfa92a5f884d (git) Affected: 03fb92a432ea5abe5909bca1455b7e44a9380480 , < d856f7574bcc1d81de565a857caf32f122cd7ce0 (git) Affected: 03fb92a432ea5abe5909bca1455b7e44a9380480 , < c05189a429fdb371dd455c3c466d67ac2ebff152 (git) Affected: 03fb92a432ea5abe5909bca1455b7e44a9380480 , < 08aa0537ec8cf29ceccae98acc1a534fc12598c1 (git) Affected: 03fb92a432ea5abe5909bca1455b7e44a9380480 , < c2a94de38c74e86f49124ac14f093d6a5c377a90 (git) Affected: b92e116ae36f498858dbb18e29a066c3f5348965 (git) Affected: 7f5972267295fe49f8da8eb42bc2eb3d140860c0 (git) Affected: 2d72d5ce63c92f56b9f978e8befb5838144176b9 (git) Affected: 4.9.241 , < 4.9.337 (semver) Affected: 4.14.203 , < 4.14.303 (semver) Affected: 4.19.154 , < 4.19.270 (semver) Affected: 5.4.73 , < 5.4.229 (semver) Affected: 4.4.241 , < 4.5 (semver) Affected: 5.8.17 , < 5.9 (semver) Affected: 5.9.2 , < 5.10 (semver)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 4.9.337 , ≤ 4.9.* (semver) Unaffected: 4.14.303 , ≤ 4.14.* (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.229 , ≤ 5.4.* (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.86 , ≤ 5.15.* (semver) Unaffected: 6.0.16 , ≤ 6.0.* (semver) Unaffected: 6.1.2 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath9k/hif_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "795d57a558d106b8a5bc2bd7aeaf707d9a099244",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "df4318440c1568b7dedc5f7d4e617d0e297a1313",
              "versionType": "git"
            },
            {
              "lessThan": "9850791d389b342ae6e573fe8198db0b4d338352",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "c3fb3e9a2c0c1a0fa492d90eb19bcfa92a5f884d",
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              "version": "03fb92a432ea5abe5909bca1455b7e44a9380480",
              "versionType": "git"
            },
            {
              "lessThan": "d856f7574bcc1d81de565a857caf32f122cd7ce0",
              "status": "affected",
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              "versionType": "git"
            },
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              "status": "affected",
              "version": "03fb92a432ea5abe5909bca1455b7e44a9380480",
              "versionType": "git"
            },
            {
              "lessThan": "08aa0537ec8cf29ceccae98acc1a534fc12598c1",
              "status": "affected",
              "version": "03fb92a432ea5abe5909bca1455b7e44a9380480",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "03fb92a432ea5abe5909bca1455b7e44a9380480",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b92e116ae36f498858dbb18e29a066c3f5348965",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7f5972267295fe49f8da8eb42bc2eb3d140860c0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2d72d5ce63c92f56b9f978e8befb5838144176b9",
              "versionType": "git"
            },
            {
              "lessThan": "4.9.337",
              "status": "affected",
              "version": "4.9.241",
              "versionType": "semver"
            },
            {
              "lessThan": "4.14.303",
              "status": "affected",
              "version": "4.14.203",
              "versionType": "semver"
            },
            {
              "lessThan": "4.19.270",
              "status": "affected",
              "version": "4.19.154",
              "versionType": "semver"
            },
            {
              "lessThan": "5.4.229",
              "status": "affected",
              "version": "5.4.73",
              "versionType": "semver"
            },
            {
              "lessThan": "4.5",
              "status": "affected",
              "version": "4.4.241",
              "versionType": "semver"
            },
            {
              "lessThan": "5.9",
              "status": "affected",
              "version": "5.8.17",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10",
              "status": "affected",
              "version": "5.9.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath9k/hif_usb.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.337",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.303",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.337",
                  "versionStartIncluding": "4.9.241",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.303",
                  "versionStartIncluding": "4.14.203",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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                },
                {
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.4.241",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.8.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
              ],
              "negate": false,
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: hif_usb: fix memory leak of urbs in ath9k_hif_usb_dealloc_tx_urbs()\n\nSyzkaller reports a long-known leak of urbs in\nath9k_hif_usb_dealloc_tx_urbs().\n\nThe cause of the leak is that usb_get_urb() is called but usb_free_urb()\n(or usb_put_urb()) is not called inside usb_kill_urb() as urb-\u003edev or\nurb-\u003eep fields have not been initialized and usb_kill_urb() returns\nimmediately.\n\nThe patch removes trying to kill urbs located in hif_dev-\u003etx.tx_buf\nbecause hif_dev-\u003etx.tx_buf is not supposed to contain urbs which are in\npending state (the pending urbs are stored in hif_dev-\u003etx.tx_pending).\nThe tx.tx_lock is acquired so there should not be any changes in the list.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:25:05.028Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/134ae5eba41294eff76e4be20d6001b8f0192207"
        },
        {
          "url": "https://git.kernel.org/stable/c/472312fef2b9eccaa03bd59e0ab2527da945e736"
        },
        {
          "url": "https://git.kernel.org/stable/c/eddbb8f7620f9f8008b090a6e10c460074ca575a"
        },
        {
          "url": "https://git.kernel.org/stable/c/9850791d389b342ae6e573fe8198db0b4d338352"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3fb3e9a2c0c1a0fa492d90eb19bcfa92a5f884d"
        },
        {
          "url": "https://git.kernel.org/stable/c/d856f7574bcc1d81de565a857caf32f122cd7ce0"
        },
        {
          "url": "https://git.kernel.org/stable/c/c05189a429fdb371dd455c3c466d67ac2ebff152"
        },
        {
          "url": "https://git.kernel.org/stable/c/08aa0537ec8cf29ceccae98acc1a534fc12598c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2a94de38c74e86f49124ac14f093d6a5c377a90"
        }
      ],
      "title": "wifi: ath9k: hif_usb: fix memory leak of urbs in ath9k_hif_usb_dealloc_tx_urbs()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50740",
    "datePublished": "2025-12-24T13:05:38.150Z",
    "dateReserved": "2025-12-24T13:02:21.542Z",
    "dateUpdated": "2026-05-23T15:25:05.028Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

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EUVD-2026-320389

CVE-2022-50740 (GCVE-0-2022-50740)

Tags

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Nomenclature

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