Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator BPF programs may call next() and destroy() on BPF iterators even after new() returns an error value (e.g. bpf_for_each() macro ignores error returns from new()). bpf_iter_scx_dsq_new() could leave the iterator in an uninitialized state after an error return causing bpf_iter_scx_dsq_next() to dereference garbage data. Make bpf_iter_scx_dsq_new() always clear $kit->dsq so that next() and destroy() become noops.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.12, < 6.12.30 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0102989af4c334d1d98b2a0fd4d61a5152e39b72Patch
- https://git.kernel.org/stable/c/255dd31bfc4a67a19b1fc2cd130a50284dadfe3aPatch
- https://git.kernel.org/stable/c/428dc9fc0873989d73918d4a9cc22745b7bbc799Patch
FAQ
What is CVE-2025-38012?
CVE-2025-38012 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator BPF programs may call next() and destroy() on BPF iterators ev...
How severe is CVE-2025-38012?
CVE-2025-38012 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-38012?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.