GHSA-H7CR-X88P-MW28
Vulnerability from github – Published: 2026-10-06 09:31 – Updated: 2026-10-06 09:31In 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.
{
"affected": [],
"aliases": [
"CVE-2026-98194"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-06T09:18:04Z",
"severity": null
},
"details": "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.",
"id": "GHSA-h7cr-x88p-mw28",
"modified": "2026-10-06T09:31:30Z",
"published": "2026-10-06T09:31:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98194"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/04c837d413dc11a91e0275b08b9e35a6c111175e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2b99bfc5a127ce8cd6a887d82815fc2e712f365b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3fb3663260ec396f86b733aab9f81fac6669d2fa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/41b1a4d545ec348b7d5324b6d4f4c6a3e0326d46"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b4745d6063758c681d33affca9733bbd356b6ea1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bbb9a0ab96d44a64529aafc7a16de460a1712f6a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e82536aad653e27c8ca7a8e0f6f816bc3f853ec3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f6c3fa0d17ca0c9e6033bb45f52e33b27a9a40e6"
}
],
"schema_version": "1.4.0",
"severity": []
}
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