CVE-2025-68317

Published: Dec 16, 2025

Modified: May 11, 2026

PUBLISHED

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.

Vendor	Product	Versions
Linux	Linux	affected `6fe4220912d19152a26ce19713ab232f4263018d - < aaafd17d3f4be2c15539359a5b4bfa00237f687f` affected `6fe4220912d19152a26ce19713ab232f4263018d - < d664a3ce3a604231a0b144c152a3755d03b18b60` affected `6fe4220912d19152a26ce19713ab232f4263018d - < ab3ea6eac5f45669b091309f592c4ea324003053`
Linux	Linux	affected `6.10` unaffected `0 - < 6.10` unaffected `6.12.58 - <= 6.12.` unaffected `6.17.8 - <= 6.17.` unaffected `6.18 - <= *`

References

https://git.kernel.org/stable/c/aaafd17d3f4be2c15539359a5b4bfa00237f687f

https://git.kernel.org/stable/c/d664a3ce3a604231a0b144c152a3755d03b18b60

https://git.kernel.org/stable/c/ab3ea6eac5f45669b091309f592c4ea324003053

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CVE-2025-68317

Description

Affected Products

References