CVE-2025-21965
sched_ext: Validate prev_cpu in scx_bpf_select_cpu_dfl()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: sched_ext: Validate prev_cpu in scx_bpf_select_cpu_dfl() If a BPF scheduler provides an invalid CPU (outside the nr_cpu_ids range) as prev_cpu to scx_bpf_select_cpu_dfl() it can cause a kernel crash. To prevent this, validate prev_cpu in scx_bpf_select_cpu_dfl() and trigger an scx error if an invalid CPU is specified.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
f0e1a0643a59bf1f922fa209cec86a170b784f3f < 752b56bb76e2471197d25d6948d85753043b10da f0e1a0643a59bf1f922fa209cec86a170b784f3f < 515680e76c536dd4aa8e2b5d674b0d441baddf5b f0e1a0643a59bf1f922fa209cec86a170b784f3f < 9360dfe4cbd62ff1eb8217b815964931523b75b3
Linux / Linux
6.12