CVE-2026-99232
- Source
- https://cve.org/CVERecord?id=CVE-2026-99232
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-99232.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-99232
- Downstream
- Related
- Published
- 2026-11-02T16:06:39Z
- Modified
- 2026-11-10T17:27:01Z
- Summary
- tracing/syscalls: Use copy_from_user for the faultable syscall buffer
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99232.json" }- References
-
- https://git.kernel.org/stable/c/041d1a568a11a7ed7415ef1408d0c65041c1ad69
- https://git.kernel.org/stable/c/097fd0050089df17b032f2b852b9b65e548e342a
- https://git.kernel.org/stable/c/e33e2718c62a602001ab549642a1aed0be797105
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99232.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-99232
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git