CVE-2025-68317
High
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/zctx: check chained notif contexts Send zc only links ubuf_info for requests coming from the same context. There are some ambiguous syz reports, so let's check the assumption on notification completion.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedDec 16, 2025
First seenDec 16, 2025
How to fix
Update
- Linux Linuxaaafd17d3f4be2c15539359a5b4bfa00237f687f, d664a3ce3a604231a0b144c152a3755d03b18b60, ab3ea6eac5f45669b091309f592c4ea324003053 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 6fe4220912d19152a26ce19713ab232f4263018d ≤ v < aaafd17d3f4be2c15539359a5b4bfa00237f687f, 6fe4220912d19152a26ce19713ab232f4263018d ≤ v < d664a3ce3a604231a0b144c152a3755d03b18b60, 6fe4220912d19152a26ce19713ab232f4263018d ≤ v < ab3ea6eac5f45669b091309f592c4ea324003053, 6.10 | aaafd17d3f4be2c15539359a5b4bfa00237f687f, d664a3ce3a604231a0b144c152a3755d03b18b60, ab3ea6eac5f45669b091309f592c4ea324003053 |
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