unscored
CVE-2026-99232
In the Linux kernel, the following vulnerability has been resolved: tracing/syscalls: Use copy_from_user for the faultable syscall buffer syscall_copy_user_arr…
Impact
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.
Affected products · Linux
| Product | Affected versions |
|---|---|
| Linux | from baa031b7bd2ce7502339174a42974321859ecd6a before e33e2718c62a602001ab549642a1aed0be797105 from baa031b7bd2ce7502339174a42974321859ecd6a before 041d1a568a11a7ed7415ef1408d0c65041c1ad69 Versions 6.19, patch: 7.2.14, patch: 0, patch: 7.3.1 |
References
- NVD record
- CVE.org record
- GitHub advisory
- https://git.kernel.org/stable/c/e33e2718c62a602001ab549642a1aed0be797105
- https://git.kernel.org/stable/c/041d1a568a11a7ed7415ef1408d0c65041c1ad69
- https://github.com/advisories/GHSA-2w2h-c9pf-xxjf
- https://nvd.nist.gov/vuln/detail/CVE-2026-99232
- https://git.kernel.org/stable/c/097fd0050089df17b032f2b852b9b65e548e342a