Description (CNA)
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application. NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- http://www.ubuntu.com/usn/USN-3146-2
- http://www.securityfocus.com/bid/94545
- http://www.ubuntu.com/usn/USN-3146-1
- http://www.openwall.com/lists/oss-security/2016/11/07/4
- https://lwn.net/Articles/705220/
ADP enrichment
No English description supplied.