CVE-2026-98194 (GCVE-0-2026-98194)
Vulnerability from cvelistv5
Published
2026-10-06 08:44
Modified
2026-10-19 09:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: libertas_tf: fix UAF in lbtf_free_adapter() lbtf_free_adapter() calls lbtf_free_cmd_buffer() to free the command buffers before calling timer_delete_sync() to wait for the command timer callback. If the timer callback (command_timer_fn) is already running when lbtf_free_cmd_buffer() frees the command array, the callback dereferences priv->cur_cmd->cmdbuf which points to freed memory. Swap the order so that timer_delete_sync() runs first, ensuring any in-flight callback has completed before the command buffers are freed.
References
Impacted products
Vendor Product Version
Linux Linux Version: 06b16ae5319251c26377afcb401e46056d5673f4
Version: 06b16ae5319251c26377afcb401e46056d5673f4
Version: 06b16ae5319251c26377afcb401e46056d5673f4
Version: 06b16ae5319251c26377afcb401e46056d5673f4
Version: 06b16ae5319251c26377afcb401e46056d5673f4
Version: 06b16ae5319251c26377afcb401e46056d5673f4
Version: 06b16ae5319251c26377afcb401e46056d5673f4
Version: 06b16ae5319251c26377afcb401e46056d5673f4
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{
  "containers": {
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            "drivers/net/wireless/marvell/libertas_tf/main.c"
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      "cpeApplicability": [
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              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas_tf: fix UAF in lbtf_free_adapter()\n\nlbtf_free_adapter() calls lbtf_free_cmd_buffer() to free the command\nbuffers before calling timer_delete_sync() to wait for the command\ntimer callback.  If the timer callback (command_timer_fn) is already\nrunning when lbtf_free_cmd_buffer() frees the command array, the\ncallback dereferences priv-\u003ecur_cmd-\u003ecmdbuf which points to freed\nmemory.\n\nSwap the order so that timer_delete_sync() runs first, ensuring any\nin-flight callback has completed before the command buffers are freed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:15:25.503Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3fb3663260ec396f86b733aab9f81fac6669d2fa"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4745d6063758c681d33affca9733bbd356b6ea1"
        },
        {
          "url": "https://git.kernel.org/stable/c/41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46"
        },
        {
          "url": "https://git.kernel.org/stable/c/2b99bfc5a127ce8cd6a887d82815fc2e712f365b"
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          "url": "https://git.kernel.org/stable/c/e82536aad653e27c8ca7a8e0f6f816bc3f853ec3"
        },
        {
          "url": "https://git.kernel.org/stable/c/04c837d413dc11a91e0275b08b9e35a6c111175e"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbb9a0ab96d44a64529aafc7a16de460a1712f6a"
        }
      ],
      "title": "wifi: libertas_tf: fix UAF in lbtf_free_adapter()",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98194",
    "datePublished": "2026-10-06T08:44:34.253Z",
    "dateReserved": "2026-09-25T10:25:14.324Z",
    "dateUpdated": "2026-10-19T09:15:25.503Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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