CVE-2026-64226

linux: In the Linux kernel, the following vulnerability has been resolved: sched_ext: Avoid UAF in scx_root_enable_workfn()...

CVE-2026-64226 is fixed in 38 products on 1 platform, first by ALAS2023-2026-1894, released June 22, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0018
7th percentile

In the Linux kernel, the following vulnerability has been resolved: sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path In scx_root_enable_workfn(), put_task_struct(p) is called before scx_error() dereferences p->comm and p->pid. If the iterator's reference is the last drop, the task is freed synchronously and the deref becomes a UAF. Move put_task_struct() past scx_error().

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
bpftool6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
bpftool6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel-livepatch-6.12.92-122.166 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel-livepatch-6.18.35-68.127 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-debuginfo-common-aarch64 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-debuginfo-common-x86_64 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-devel · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-headers · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-modules-extra · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-modules-extra-common · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-tools · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-tools-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-tools-devel · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-devel · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-headers · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-tools · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
linux · Debian 13.5 (trixie) 6.12.94-1 DEBIAN-CVE-2026-64226 Jul 25, 2026
linux · Debian 14 7.0.12-1 DEBIAN-CVE-2026-64226 Jul 25, 2026
microvm-kernel6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
perf6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
perf6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
perf6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
python3-perf6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
python3-perf6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
python3-perf6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.