Description (CNA)
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel before 4.7.5 does not initialize a certain integer variable, which allows local users to obtain sensitive information from kernel stack memory by triggering failure of a get_user_ex call.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35af
- http://www.openwall.com/lists/oss-security/2016/11/04/4
- https://bugzilla.redhat.com/show_bug.cgi?id=1391908
- http://www.securityfocus.com/bid/94144
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5
ADP enrichment
No English description supplied.
- https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35af
- http://www.openwall.com/lists/oss-security/2016/11/04/4
- https://bugzilla.redhat.com/show_bug.cgi?id=1391908
- http://www.securityfocus.com/bid/94144
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5