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…

Description

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.

Scores

EPSS (exploitation in 30 days)

0.43% · top 62% of all CVEs (3 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

• n/a
• CWE-200 (opens in a new tab)Other CVEs with CWE-200

Affected products

• n/a

  • affected n/a

References (6)

• https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35af (opens in a new tab)x_refsource_CONFIRMx_transferred
• [oss-security] 20161104 Re: kernel: fix minor infoleak in get_user_ex() (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1391908 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 94144 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5 (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2016-9178](https://trackcve.app/badge/CVE-2016-9178.svg)](https://trackcve.app/cve/CVE-2016-9178)

Record last updated 6 Aug 2024, 02:42 UTC.