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