CVE-2025-40046 (GCVE-0-2025-40046)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2025-10-28 11:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by io_zcrx_recv_skb() adjusting desc->count for all received buffers including frag lists, but then doing recursive calls to process frag list skbs, which leads to desc->count double accounting and underflow.
References
Impacted products
Vendor Product Version
Linux Linux Version: 6699ec9a23f85f1764183430209c741847c45f12
Version: 6699ec9a23f85f1764183430209c741847c45f12
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      "providerMetadata": {
        "dateUpdated": "2025-10-28T11:48:24.022Z",
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    "cveId": "CVE-2025-40046",
    "datePublished": "2025-10-28T11:48:24.022Z",
    "dateReserved": "2025-04-16T07:20:57.154Z",
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  }
}


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