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procps/proc
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Jim Warner 50ae55ef10 library: avoid problems involving 'supgid' mishandling 
Following that patch referenced below, the top SUPGRPS
field would produce a segmentation fault and ps SUPGRP
would often show "(null)". Such problems resulted from
some faulty logic in the status2proc() routine dealing
with 'Groups' (supgid) which served as a source field.

For many processes the original code produced an empty
string which prevented conversion to the expected "-".
Moreover, prior to release 3.3.15 such an empty string
will become 0 after strtol() which pwcache_get_group()
translates to 'root' yielding very misleading results.

So, now we'll check for empty '/proc/#/status/Groups:'
fields & consistently provide a "-" value for callers.

[ we'll also protect against future problems in that ]
[ new qualys logic by always ensuring valid 'supgrp' ]
[ pointers - logic which revealed our original flaw! ]

Reference(s):
. original qualys patch
0071-proc-readproc.c-Harden-supgrps_from_supgids.patch

Signed-off-by: Jim Warner <james.warner@comcast.net>
2018-06-09 21:35:20 +10:00
..
.gitignore tests: update template and add pids 2016-04-19 21:33:02 +10:00
COPYING miscellaneous: clean up trailing whitespace once again 2013-04-07 18:05:01 +10:00
devname.c 0040-proc/devname.c: Never write more than "chop" (part 2). 2018-06-09 21:35:19 +10:00
devname.h library: eliminate inappropriate '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
diskstats.c library: clean up some miscellaneous compiler warnings 2018-06-09 21:35:20 +10:00
diskstats.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
escape.c 0051-proc/escape.c: Prevent buffer overflows in escape_command(). 2018-06-09 21:35:19 +10:00
escape.h library: eliminate inappropriate '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
libprocps.pc.in Renaming libprocfs to libprocps 2011-12-23 09:18:43 +11:00
libprocps.sym library: provide for validating result type references 2016-08-07 21:40:48 +10:00
meminfo.c library: clean up some miscellaneous compiler warnings 2018-06-09 21:35:20 +10:00
meminfo.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
namespace.c library: ensure 'namespace' types treated consistently 2017-01-04 08:29:44 +11:00
namespace.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
numa.c library: set stage for NUMA node field display support 2017-05-22 21:38:10 +10:00
numa.h library: eliminate inappropriate '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
pids.c library: clean up some miscellaneous compiler warnings 2018-06-09 21:35:20 +10:00
pids.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
procps-private.h library: please keep procps-private.h free of #include 2016-06-11 11:50:37 +10:00
procps.h library: provide for validating result type references 2016-08-07 21:40:48 +10:00
pwcache.c library: eliminate all dependencies on alloc.h/alloc.c 2017-12-20 21:18:53 +11:00
pwcache.h library: eliminate inappropriate '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
readproc.c library: avoid problems involving 'supgid' mishandling 2018-06-09 21:35:20 +10:00
readproc.h library: eliminate inappropriate '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
slabinfo.c library: clean up some miscellaneous compiler warnings 2018-06-09 21:35:20 +10:00
slabinfo.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
stat.c library: clean up some miscellaneous compiler warnings 2018-06-09 21:35:20 +10:00
stat.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
sysinfo.c library: eliminate all dependencies on alloc.h/alloc.c 2017-12-20 21:18:53 +11:00
sysinfo.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
test_namespace.c tests: update template and add pids 2016-04-19 21:33:02 +10:00
test_pids.c related: change for lost 'PROCPS_' enumerator prefixes 2016-07-26 20:49:44 +10:00
test_sysinfo.c tests: update template and add pids 2016-04-19 21:33:02 +10:00
test_uptime.c library: procps_uptime() return value is a status 2016-05-01 16:50:25 +10:00
test_version.c library: Fix LINUX_VERSION macro 2016-05-01 17:46:25 +10:00
uptime.c 0047-proc/whattime.c: Always initialize buf. 2018-06-09 21:35:19 +10:00
uptime.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
version.c miscellaneous: remove some trailing whitespace buildup 2015-06-20 07:46:23 +10:00
version.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
vmstat.c library: clean up some miscellaneous compiler warnings 2018-06-09 21:35:20 +10:00
vmstat.h library: replace the troublesome '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
wchan.c library: don't strip off prefixes from the wchan names 2016-12-07 22:07:00 +11:00
wchan.h library: eliminate inappropriate '__BEGIN_DECLS' macro 2018-05-06 07:19:38 +10:00
xtra-procps-debug.h library: strengthen the VAL macro validation functions 2016-08-08 22:01:37 +10:00