ghsa-m8p9-q552-5h79
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition
In the ssi_protocol_probe() function, &ssi->work is bound with ssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function within the ssip_pn_ops structure is capable of starting the work.
If we remove the module which will call ssi_protocol_remove() to make a cleanup, it will free ssi through kfree(ssi), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows:
CPU0 CPU1
| ssip_xmit_work
ssi_protocol_remove | kfree(ssi); | | struct hsi_client *cl = ssi->cl; | // use ssi
Fix it by ensuring that the work is canceled before proceeding with the cleanup in ssi_protocol_remove().
{
"affected": [],
"aliases": [
"CVE-2025-37838"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-18T15:15:59Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition\n\nIn the ssi_protocol_probe() function, \u0026ssi-\u003ework is bound with\nssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function\nwithin the ssip_pn_ops structure is capable of starting the\nwork.\n\nIf we remove the module which will call ssi_protocol_remove()\nto make a cleanup, it will free ssi through kfree(ssi),\nwhile the work mentioned above will be used. The sequence\nof operations that may lead to a UAF bug is as follows:\n\nCPU0 CPU1\n\n | ssip_xmit_work\nssi_protocol_remove |\nkfree(ssi); |\n | struct hsi_client *cl = ssi-\u003ecl;\n | // use ssi\n\nFix it by ensuring that the work is canceled before proceeding\nwith the cleanup in ssi_protocol_remove().",
"id": "GHSA-m8p9-q552-5h79",
"modified": "2025-05-02T09:30:31Z",
"published": "2025-04-20T09:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37838"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4a8c29beb8a02b5a0a9d77d608aa14b6f88a6b86"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/58eb29dba712ab0f13af59ca2fe545f5ce360e78"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/72972552d0d0bfeb2dec5daf343a19018db36ffa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/834e602d0cc7c743bfce734fad4a46cefc0f9ab1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ae5a6a0b425e8f76a9f0677e50796e494e89b088"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d03abc1c2b21324550fa71e12d53e7d3498e0af6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d58493832e284f066e559b8da5ab20c15a2801d3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e3f88665a78045fe35c7669d2926b8d97b892c11"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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