CVE-2026-64226
N/A
N/A
Summary
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().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f0e1a0643a59bf1f922fa209cec86a170b784f3f < cf396941901858b0de426cdcd3974eea6a02c98c | affected |
| Linux | Linux | f0e1a0643a59bf1f922fa209cec86a170b784f3f < 45c7c4e3db8b700307313c035ea08be829a7f21b | affected |
| Linux | Linux | f0e1a0643a59bf1f922fa209cec86a170b784f3f < 57e19ba3f58a67eb924022a5a60b67fd08e5cbbd | affected |
| Linux | Linux | f0e1a0643a59bf1f922fa209cec86a170b784f3f < 9a415cc53711f2238e0f0ca8a6bcc796c003b127 | affected |
| Linux | Linux | 6.12 | affected |
| Linux | Linux | 0 < 6.12 | unaffected |
| Linux | Linux | 6.12.92 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.34 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.11 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/cf396941901858b0de426cdcd3974eea6a02c98c
- https://git.kernel.org/stable/c/45c7c4e3db8b700307313c035ea08be829a7f21b
- https://git.kernel.org/stable/c/57e19ba3f58a67eb924022a5a60b67fd08e5cbbd
- https://git.kernel.org/stable/c/9a415cc53711f2238e0f0ca8a6bcc796c003b127
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