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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 16 Dec 2025 15:45:00 +0000

Type Values Removed Values Added
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.
Title io_uring/zctx: check chained notif contexts
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-16T15:39:47.159Z

Reserved: 2025-12-16T14:48:05.295Z

Link: CVE-2025-68317

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-12-16T16:16:11.280

Modified: 2025-12-16T16:16:11.280

Link: CVE-2025-68317

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.