GHSA-MR75-WQ82-9HCW
Vulnerability from github – Published: 2025-05-08 09:30 – Updated: 2025-11-14 21:30In the Linux kernel, the following vulnerability has been resolved:
scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()
A race can occur between the MCQ completion path and the abort handler: once a request completes, __blk_mq_free_request() sets rq->mq_hctx to NULL, meaning the subsequent ufshcd_mcq_req_to_hwq() call in ufshcd_mcq_abort() can return a NULL pointer. If this NULL pointer is dereferenced, the kernel will crash.
Add a NULL check for the returned hwq pointer. If hwq is NULL, log an error and return FAILED, preventing a potential NULL-pointer dereference. As suggested by Bart, the ufshcd_cmd_inflight() check is removed.
This is similar to the fix in commit 74736103fb41 ("scsi: ufs: core: Fix ufshcd_abort_one racing issue").
This is found by our static analysis tool KNighter.
{
"affected": [],
"aliases": [
"CVE-2025-37828"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-08T07:15:54Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()\n\nA race can occur between the MCQ completion path and the abort handler:\nonce a request completes, __blk_mq_free_request() sets rq-\u003emq_hctx to\nNULL, meaning the subsequent ufshcd_mcq_req_to_hwq() call in\nufshcd_mcq_abort() can return a NULL pointer. If this NULL pointer is\ndereferenced, the kernel will crash.\n\nAdd a NULL check for the returned hwq pointer. If hwq is NULL, log an\nerror and return FAILED, preventing a potential NULL-pointer\ndereference. As suggested by Bart, the ufshcd_cmd_inflight() check is\nremoved.\n\nThis is similar to the fix in commit 74736103fb41 (\"scsi: ufs: core: Fix\nufshcd_abort_one racing issue\").\n\nThis is found by our static analysis tool KNighter.",
"id": "GHSA-mr75-wq82-9hcw",
"modified": "2025-11-14T21:30:26Z",
"published": "2025-05-08T09:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37828"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/47eec518aef3814f64a5da43df81bdd74d8c0041"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4c324085062919d4e21c69e5e78456dcec0052fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d002f591486f5ef4bc02eb02025a53f931f0eb5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d6979fabe812a168d5053e5a41d5a2e9b8afd7bf"
}
],
"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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