URL:
<
http://savannah.gnu.org/bugs/?36591>
Summary: error: format not a string literal and no format
arguments [-Werror=format-security]
Project: GNU FreeIPMI
Submitted by: yoh
Submitted on: Tue 05 Jun 2012 01:00:00 AM GMT
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Operating System: GNU/Linux
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Details:
There is an ongoing effort
http://wiki.debian.org/ReleaseGoals/SecurityHardeningBuildFlagsto provide "hardened" builds of the software for Debian. so I have tried to
build freeipmi with suggested flags and ran into:
/bin/sh ../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I.
-I../../config -D_GNU_SOURCE -D_REENTRANT -D_FORTIFY_SOURCE=2 -g -O2
-fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security
-Werror=format-security -c -o libmiscutil_la-conffile.lo `test -f 'conffile.c'
|| echo './'`conffile.c
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I../../config -D_GNU_SOURCE
-D_REENTRANT -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector
--param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security
-c conffile.c
-fPIC -DPIC -o .libs/libmiscutil_la-conffile.o
conffile.c: In function ‘conffile_errmsg’:
conffile.c:152:23: error: format not a string literal and no format arguments
[-Werror=format-security]
conffile.c:152:23: error: format not a string literal and no format arguments
[-Werror=format-security]
conffile.c:155:23: error: format not a string literal and no format arguments
[-Werror=format-security]
conffile.c:155:23: error: format not a string literal and no format arguments
[-Werror=format-security]
conffile.c:159:23: error: format not a string literal and no format arguments
[-Werror=format-security]
conffile.c:159:23: error: format not a string literal and no format arguments
[-Werror=format-security]
conffile.c:179:23: error: format not a string literal and no format arguments
[-Werror=format-security]
conffile.c:179:23: error: format not a string literal and no format arguments
[-Werror=format-security]
cc1: some warnings being treated as errors
make[3]: *** [libmiscutil_la-conffile.lo] Error 1
...
which are due to the use of snprintf in the scenario where format string is
not actually especting any format options.
Here is few other locations of similar uses:
util/ipmi-device-types-util.c:58:3: error: format not a string literal and no
format arguments [-Werror=format-security]
util/ipmi-sensor-and-event-code-tables-util.c:1111:3: error: format not a
string literal and no format arguments [-Werror=format-security]
util/ipmi-sensor-util.c:67:3: error: format not a string literal and no format
arguments [-Werror=format-security]
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