CVE-2026-64226
sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 24, 2026 |
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Affected Versions
Linux / Linux
f0e1a0643a59bf1f922fa209cec86a170b784f3f < cf396941901858b0de426cdcd3974eea6a02c98c f0e1a0643a59bf1f922fa209cec86a170b784f3f < 45c7c4e3db8b700307313c035ea08be829a7f21b f0e1a0643a59bf1f922fa209cec86a170b784f3f < 57e19ba3f58a67eb924022a5a60b67fd08e5cbbd f0e1a0643a59bf1f922fa209cec86a170b784f3f < 9a415cc53711f2238e0f0ca8a6bcc796c003b127
Linux / Linux
6.12
References
git.kernel.org: https://git.kernel.org/stable/c/cf396941901858b0de426cdcd3974eea6a02c98c git.kernel.org: https://git.kernel.org/stable/c/45c7c4e3db8b700307313c035ea08be829a7f21b git.kernel.org: https://git.kernel.org/stable/c/57e19ba3f58a67eb924022a5a60b67fd08e5cbbd git.kernel.org: https://git.kernel.org/stable/c/9a415cc53711f2238e0f0ca8a6bcc796c003b127