CVE-2026-89502
linux: In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpu_buffer::free_page with sub...
CVE-2026-89502 is fixed in 87 products on 1 platform, first by DEBIAN-CVE-2026-89502, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
IMPORTANT
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0021
10th percentile
In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpu_buffer::free_page with subbuf_order When sub-buffers use an order greater than 0, cpu_buffer->free_page is allocated with subbuf_order. Use the correct order for cpu_buffer->free_page.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24197-1 | Nov 7, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.39.1.160000.2.25 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.39.1.160000.2.26 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-livepatch-6.12.110-135.201 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel-livepatch-6.18.51-120.162 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.39.1 | OPENSUSE-SU-2026:22091-1 | Nov 7, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.39.1 | SUSE-SU-2026:24235-1 | Nov 7, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.111-1 | DEBIAN-CVE-2026-89502 | Sep 23, 2026 |
| linux · Debian 14 | 7.2.6-1 | DEBIAN-CVE-2026-89502 | Sep 23, 2026 |
| linux-6.12 · Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | DEBIAN-CVE-2026-89502 | Sep 23, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
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