Kernel memory corruption via oversized debugfs write
Published Jul 10, 2025 · Updated Aug 5, 2026
Out-of-bounds write in Linux kernel 6.11 through 6.15.2 allows local users with root access to corrupt kernel memory via ath12k debugfs. ath12k_write_htt_stats_type allocates a fixed 32-byte heap buffer and copies the caller-supplied byte count into it without first rejecting longer writes. Reaching htt_stats_type requires root access to debugfs; the documented consequence is kernel memory corruption, not a network-reachable attack.
Summary
What happened
Out-of-bounds write in Linux kernel 6.11 through 6.15.2 allows local users with root access to corrupt kernel memory via ath12k debugfs. ath12k_write_htt_stats_type allocates a fixed 32-byte heap buffer and copies the caller-supplied byte count into it without first rejecting longer writes. Reaching htt_stats_type requires root access to debugfs; the documented consequence is kernel memory corruption, not a network-reachable attack.
The record
- CVE
- CVE-2025-38317
- Published
- Jul 10, 2025
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jul 10, 2025CVE publishedPublication date reported by the CVE source.
- Aug 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3f73c24f28b317f22df7870c25ff82f1d625c6c2 <0c57aa8ef94cffc5c2d68230e19329a03e71a94f
- Affected versionversion=3f73c24f28b317f22df7870c25ff82f1d625c6c2 <8c4a200d03574bfcbf54fdb7ba5968b58ad2e0b3
- Affected versionversion=3f73c24f28b317f22df7870c25ff82f1d625c6c2 <8c7a5031a6b0d42e640fbd2d5d05f61f74e32dce
- Affected versionversion=6.11
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo