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().
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= f0e1a0643a59bf1f922fa209cec86a170b784f3f, < cf396941901858b0de426cdcd3974eea6a02c98c; >= f0e1a0643a59bf1f922fa209cec86a170b784f3f, < 45c7c4e3db8b700307313c035ea08be829a7f21b; >= f0e1a0643a59bf1f922fa209cec86a170b784f3f, < 57e19ba3f58a67eb924022a5a60b67fd08e5cbbd; >= f0e1a0643a59bf1f922fa209cec86a170b784f3f, < 9a415cc53711f2238e0f0ca8a6bcc796c003b127 |
| Linux | Linux | 6.12 |
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
Timeline
- Published
- Jul 24, 2026
- Last modified
- Aug 13, 2026
- NVD status
- Analyzed