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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.

PUBLISHED Reserved 2025-12-16 | Published 2025-12-16 | Updated 2025-12-16 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before aaafd17d3f4be2c15539359a5b4bfa00237f687f
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before d664a3ce3a604231a0b144c152a3755d03b18b60
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before ab3ea6eac5f45669b091309f592c4ea324003053
affected

Default status
affected

6.12.58 (semver)
unaffected

6.17.8 (semver)
unaffected

6.18 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/aaafd17d3f4be2c15539359a5b4bfa00237f687f

git.kernel.org/...c/d664a3ce3a604231a0b144c152a3755d03b18b60

git.kernel.org/...c/ab3ea6eac5f45669b091309f592c4ea324003053

cve.org (CVE-2025-68317)

nvd.nist.gov (CVE-2025-68317)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.