CVE-2025-68317

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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

Published

2025-12-16

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/aaafd17d3f4be2c15539359a5b4bfa00237f687f
• https://git.kernel.org/stable/c/ab3ea6eac5f45669b091309f592c4ea324003053
• https://git.kernel.org/stable/c/d664a3ce3a604231a0b144c152a3755d03b18b60

Check your stackJSON