From 740a463062bd5d1641bdfb639295dafe89341b9b Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Wed, 26 Apr 2017 15:42:03 +0100 Subject: [PATCH] Fix invocation of stat() on a NULL pointer. PR binutils/21407 * bucomm.c (get_file_size): Return -1 if file_name is NULL. * ar.c (main): Fail with usage() invocation if no file names are provided. --- binutils/ChangeLog | 7 +++++++ binutils/ar.c | 3 +++ binutils/bucomm.c | 3 +++ 3 files changed, 13 insertions(+) diff --git a/binutils/ChangeLog b/binutils/ChangeLog index e1736b9..b37d5b3 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,5 +1,12 @@ 2017-04-26 Nick Clifton + PR binutils/21407 + * bucomm.c (get_file_size): Return -1 if file_name is NULL. + * ar.c (main): Fail with usage() invocation if no file names are + provided. + +2017-04-26 Nick Clifton + * readelf.c (process_section_headers): Warn about overlarge sections. (print_gnu_build_attribute_name): Print the number of unrecognised diff --git a/binutils/ar.c b/binutils/ar.c index 32ac404..ef8b5bd 100644 --- a/binutils/ar.c +++ b/binutils/ar.c @@ -738,6 +738,9 @@ main (int argc, char **argv) arg_index = 0; + if (argv[arg_index] == NULL) + usage (0); + if (mri_mode) { default_deterministic (); diff --git a/binutils/bucomm.c b/binutils/bucomm.c index e682717..fd6f356 100644 --- a/binutils/bucomm.c +++ b/binutils/bucomm.c @@ -587,6 +587,9 @@ get_file_size (const char * file_name) { struct stat statbuf; + if (file_name == NULL) + return (off_t) -1; + if (stat (file_name, &statbuf) < 0) { if (errno == ENOENT) -- 2.7.4