CVE-2025-40046
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.
- CVSS 3.1
- 8.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-25)
- Published
- Modified
- Record from
- the NVD, synced