Description

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.

INFO

Published Date :

2025-10-28T11:48:24.022Z

Last Modified :

2025-12-01T06:16:51.383Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-40046 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-40046.

URL Resource
https://git.kernel.org/stable/c/09cfd3c52ea76f43b3cb15e570aeddf633d65e80 cve-icon cve-icon
https://git.kernel.org/stable/c/8bcc9eaf1b19f1a7029cba19f6bd4122b40f6c4f cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102813-CVE-2025-40046-391f@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40046 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40046 cve-icon
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