Thread (2 messages) 2 messages, 2 authors, 2016-02-17

Re: [PATCH] kbuild: fixdep: Check fstat(2) return value

From: Tom Rini <hidden>
Date: 2016-02-16 15:39:30
Also in: linux-kbuild, lkml

On Sat, Jan 16, 2016 at 02:11:16PM -0500, Tom Rini wrote:
On Mon, Dec 7, 2015 at 4:26 PM, Tom Rini [off-list ref] wrote:
quoted
Coverity has recently added a check that will find when we don't check
the return code from fstat(2).  Copy/paste the checking logic that
print_deps() has with an appropriate re-wording of the perror() message.

Cc: Michal Marek <redacted>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Tom Rini <redacted>

---
Note that I don't have a CID here was I found this in U-Boot and the
kernel hasn't yet done a build with this test being enabled.
---
 scripts/basic/fixdep.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index c68fd61..e3d9678 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -274,7 +274,11 @@ static void do_config_file(const char *filename)
                perror(filename);
                exit(2);
        }
-       fstat(fd, &st);
+       if (fstat(fd, &st) < 0) {
+               fprintf(stderr, "fixdep: error fstat'ing config file: ");
+               perror(filename);
+               exit(2);
+       }
        if (st.st_size == 0) {
                close(fd);
                return;

Adding stable@ since this applies to 4.4.  Any comments?  Thanks!
Ping?  Thanks!

-- 
Tom
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help