CVS commit: src/lib/libc/stdlib

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

Module Name:    src
Committed By:   kamil
Date:           Wed Jul 25 20:05:35 UTC 2018

Modified Files:
        src/lib/libc/stdlib: jemalloc.c

Log Message:
Avoid undefined behavior in left bit shift in jemalloc(3)

Change the type of shifted value to unsigned to prevent altering the
signedness bit.

jemalloc.c:1707:14, left shift of 1 by 31 places cannot be represented in type 'int'
jemalloc.c:1724:15, left shift of 1 by 31 places cannot be represented in type 'int'
jemalloc.c:1840:28, left shift of 1 by 31 places cannot be represented in type 'int'

Detected with micro-UBSan in the user mode.


To generate a diff of this commit:
cvs rdiff -u -r1.44 -r1.45 src/lib/libc/stdlib/jemalloc.c

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