Information Exposure The advisory has been revoked - it doesn't affect any version of package realtime-kernel (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-REALTIMEKERNEL-9891090
- published28 Apr 2025
- disclosed15 Sept 2016
Introduced: 15 Sep 2016
CVE-2016-9178 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream realtime-kernel package and not the realtime-kernel package as distributed by RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1391908
- https://access.redhat.com/security/cve/CVE-2016-9178
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35af
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5
- http://www.openwall.com/lists/oss-security/2016/11/04/4
- http://www.securityfocus.com/bid/94144
- https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af