CVE-2026-99232
tracing/syscalls: Use copy_from_user for the faultable syscall buffer
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: tracing/syscalls: Use copy_from_user for the faultable syscall buffer syscall_copy_user_array() copies the buffer argument of faultable syscalls (write, pwrite64, ...) with __copy_from_user(), which skips access_ok(). Use copy_from_user() instead so a non-user address is rejected and the entry is recorded as faulted. It could be a security concern for machines that trust perf a bit too much.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- Not scored
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
Linux · Linux
- affected baa031b7bd2ce7502339174a42974321859ecd6a – < e33e2718c62a602001ab549642a1aed0be797105
- affected baa031b7bd2ce7502339174a42974321859ecd6a – < 041d1a568a11a7ed7415ef1408d0c65041c1ad69
Linux · Linux
- affected 6.19
- unaffected < 6.19
- unaffected 7.2.14 – ≤ 7.2.*
- unaffected 7.3.1 – ≤ 7.3.*
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .