From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Tue, 20 Jun 2017 00:48:47 +0000 (+0200)
Subject: utils: use 1LU otherwise we overflow
X-Git-Tag: lxc-2.1.0~94^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1630%2Fhead;p=thirdparty%2Flxc.git

utils: use 1LU otherwise we overflow

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/utils.c b/src/lxc/utils.c
index 4419e672e..9d88076c5 100644
--- a/src/lxc/utils.c
+++ b/src/lxc/utils.c
@@ -1923,12 +1923,14 @@ bool task_blocking_signal(pid_t pid, int signal)
 		return bret;
 
 	while (getline(&line, &n, f) != -1) {
-		if (!strncmp(line, "SigBlk:\t", 8))
-			if (sscanf(line + 8, "%lx", &sigblk) != 1)
-				goto out;
+		if (strncmp(line, "SigBlk:\t", 8))
+			continue;
+
+		if (sscanf(line + 8, "%lx", &sigblk) != 1)
+			goto out;
 	}
 
-	if (sigblk & (1 << (signal - 1)))
+	if (sigblk & (1LU << (signal - 1)))
 		bret = true;
 
 out: