CVS commit: src/sys/sys

["Kamil Rytarowski" <kamil%netbsd.org@localhost>]

Module Name:    src
Committed By:   kamil
Date:           Wed Jul  4 01:17:32 UTC 2018

Modified Files:
        src/sys/sys: mman.h

Log Message:
Avoid undefined operation in signed integer shift in MAP_ALIGNED()

Cast the shifted byte to unsigned int.

sys/uvm/uvm_mmap.c:914:19, left shift of 255 by 24 places cannot be represented in type 'int'

Detected with Kernel Undefined Behavior Sanitizer.

Reported by <Harry Pantazis>


To generate a diff of this commit:
cvs rdiff -u -r1.53 -r1.54 src/sys/sys/mman.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.