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Date:      Fri, 24 Sep 2021 16:53:03 GMT
From:      Konstantin Belousov <kib@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org
Subject:   git: 364790beafec - main - pidfile test: guarantee nul termination of the read pid string
Message-ID:  <202109241653.18OGr3Ps055544@gitrepo.freebsd.org>

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The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=364790beafec707ca3e334683e4030684d829be2

commit 364790beafec707ca3e334683e4030684d829be2
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2021-09-24 03:12:20 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2021-09-24 16:52:41 +0000

    pidfile test: guarantee nul termination of the read pid string
    
    PR:     258701
    Based on the submission by:     sigsys@gmail.com
    MFC after:      1 week
---
 lib/libutil/tests/pidfile_test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/libutil/tests/pidfile_test.c b/lib/libutil/tests/pidfile_test.c
index 9e516c35273c..9bfa6754ce54 100644
--- a/lib/libutil/tests/pidfile_test.c
+++ b/lib/libutil/tests/pidfile_test.c
@@ -286,7 +286,8 @@ test_pidfile_relative(void)
 	fd = open(path, O_RDONLY);
 	if (fd < 0)
 		return (strerror(errno));
-	if (read(fd, pid, sizeof(pid)) < 0)
+	memset(pid, 0, sizeof(pid));
+	if (read(fd, pid, sizeof(pid) - 1) < 0)
 		return (strerror(errno));
 	if (atoi(pid) != getpid())
 		return ("pid mismatch");



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