CVE-2025-68317
io_uring/zctx: check chained notif contexts
CVE-2025-68317 is fixed in 71 products on 1 platform, first by DEBIAN-CVE-2025-68317, released December 16, 2025. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0014
3rd percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.9.1.160000.2.6 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.9.1.160000.2.6 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-livepatch-6.12.58-82.121 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-107.59.3.2.el9uek | ELSA-2026-50006 | Jan 13, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.9.1 | OPENSUSE-SU-2026:20145-1 | Feb 2, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.9.1 | SUSE-SU-2026:20220-1 | Feb 2, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-libbpf · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-libbpf-debuginfo · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-libbpf-devel · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-libbpf-static · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.63-1 | DEBIAN-CVE-2025-68317 | Dec 16, 2025 |
| linux · Debian 14 | 6.17.8-1 | DEBIAN-CVE-2025-68317 | Dec 16, 2025 |
| perf6.12 · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.58-82.121.amzn2023 | ALAS2023-2026-1495 | Mar 16, 2026 |
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