Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6699ec9a23f85f1764183430209c741847c45f12 before 8bcc9eaf1b19f1a7029cba19f6bd4122b40f6c4f; affected 6699ec9a23f85f1764183430209c741847c45f12 before 09cfd3c52ea76f43b3cb15e570aeddf633d65e80 |
| Linux / Linux | affected 6.15; unaffected 0 before 6.15; unaffected 6.17.3 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.