linux-ext4 - [PATCH 5/7] libss: handle memory allcation failure in ss

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Date:   Fri,  6 Aug 2021 11:58:18 +0200
From:   Lukas Czerner <lczerner@...hat.com>
To:     tytso@....edu
Cc:     linux-ext4@...r.kernel.org
Subject: [PATCH 5/7] libss: handle memory allcation failure in ss_help()

Signed-off-by: Lukas Czerner <lczerner@...hat.com>
---
 lib/ss/help.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/ss/help.c b/lib/ss/help.c
index 96eb1092..a22b4017 100644
--- a/lib/ss/help.c
+++ b/lib/ss/help.c
@@ -96,7 +96,12 @@ void ss_help(int argc, char const * const *argv, int sci_idx, pointer info_ptr)
     }
     if (fd < 0) {
 #define MSG "No info found for "
-        char *buf = malloc(strlen (MSG) + strlen (argv[1]) + 1);
+	char *buf = malloc(strlen (MSG) + strlen (argv[1]) + 1);
+	if (!buf) {
+		ss_perror(sci_idx, 0,
+			  "couldn't allocate memory to print error message");
+		return;
+	}
 	strcpy(buf, MSG);
 	strcat(buf, argv[1]);
 	ss_perror(sci_idx, 0, buf);
-- 
2.31.1