CVE-2025-38012
MEDIUM EPSS 4.9%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
4.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-908
Affected Products 8
References 3
- git.kernel.org https://git.kernel.org/stable/c/0102989af4c334d1d98b2a0fd4d61a5152e39b72
- git.kernel.org https://git.kernel.org/stable/c/255dd31bfc4a67a19b1fc2cd130a50284dadfe3a
- git.kernel.org https://git.kernel.org/stable/c/428dc9fc0873989d73918d4a9cc22745b7bbc799
Remediation
- git.kernel.org https://git.kernel.org/stable/c/0102989af4c334d1d98b2a0fd4d61a5152e39b72
- git.kernel.org https://git.kernel.org/stable/c/255dd31bfc4a67a19b1fc2cd130a50284dadfe3a
- git.kernel.org https://git.kernel.org/stable/c/428dc9fc0873989d73918d4a9cc22745b7bbc799