Weak Permissions in ioresources_init Function in Linux Kernel

CVE-2015-8944 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:N/A:N

The ioresources_init function in kernel/resource.c in the Linux kernel through 4.7, as used in Android before 2016-08-05 on Nexus 6 and 7 (2013) devices, uses weak permissions for /proc/iomem, which allows local users to obtain sensitive information by reading this file, aka Android internal bug 28814213 and Qualcomm internal bug CR786116. NOTE: the permissions may be intentional in most non-Android contexts.

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