GHSA-3HM2-VM5H-2P2M

Vulnerability from github – Published: 2024-07-16 12:30 – Updated: 2025-09-24 18:30
VLAI?
Details

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

net: ieee802154: at86rf230: Stop leaking skb's

Upon error the ieee802154_xmit_complete() helper is not called. Only ieee802154_wake_queue() is called manually. In the Tx case we then leak the skb structure.

Free the skb structure upon error before returning when appropriate.

As the 'is_tx = 0' cannot be moved in the complete handler because of a possible race between the delay in switching to STATE_RX_AACK_ON and a new interrupt, we introduce an intermediate 'was_tx' boolean just for this purpose.

There is no Fixes tag applying here, many changes have been made on this area and the issue kind of always existed.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-48794"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-16T12:15:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ieee802154: at86rf230: Stop leaking skb\u0027s\n\nUpon error the ieee802154_xmit_complete() helper is not called. Only\nieee802154_wake_queue() is called manually. In the Tx case we then leak\nthe skb structure.\n\nFree the skb structure upon error before returning when appropriate.\n\nAs the \u0027is_tx = 0\u0027 cannot be moved in the complete handler because of a\npossible race between the delay in switching to STATE_RX_AACK_ON and a\nnew interrupt, we introduce an intermediate \u0027was_tx\u0027 boolean just for\nthis purpose.\n\nThere is no Fixes tag applying here, many changes have been made on this\narea and the issue kind of always existed.",
  "id": "GHSA-3hm2-vm5h-2p2m",
  "modified": "2025-09-24T18:30:23Z",
  "published": "2024-07-16T12:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48794"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0fd484644c68897c490a3307bfcc8bf767df5a43"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c72f04d52b7200bb83426a9bed378668271ea4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23b2a25382400168427ea278f3d8bf4ecfd333bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/455ef08d6e5473526fa6763f75a93f7198206966"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6312f6a53fd3ea38125dcaca5e3c9aa7d8a60cf7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af649e5c95f56df64363bc46f6746b87819f9c0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2a1eaf51b7d4412319adb6acef114ba472d1692"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5ce576d45bf72fd0e3dc37eff897bfcc488f6a9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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