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CVE-2016-9644
Published: Nov 28, 2016
Modified: Aug 6, 2024
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
USN-3146-2
vendor-advisory
x_refsource_UBUNTU
94545
vdb-entry
x_refsource_BID
USN-3146-1
vendor-advisory
x_refsource_UBUNTU
[oss-security] 20161107 Re: Re: kernel: fix minor infoleak in get_user_ex()
mailing-list
x_refsource_MLIST
https://lwn.net/Articles/705220/
x_refsource_CONFIRM
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