Vulnerability Description
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().
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.12, < 6.12.92 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/45c7c4e3db8b700307313c035ea08be829a7f21bPatch
- https://git.kernel.org/stable/c/57e19ba3f58a67eb924022a5a60b67fd08e5cbbdPatch
- https://git.kernel.org/stable/c/9a415cc53711f2238e0f0ca8a6bcc796c003b127Patch
- https://git.kernel.org/stable/c/cf396941901858b0de426cdcd3974eea6a02c98cPatch
FAQ
What is CVE-2026-64226?
CVE-2026-64226 is a vulnerability with a CVSS score of 7.8 (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 befor...
How severe is CVE-2026-64226?
CVE-2026-64226 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64226?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.