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.
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
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| 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 |
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