e2fsprogs-1.42.12-dumpe2fs-segfault.patch


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commit fecb231f6fc83cf4b4ddf7ec34ace3723803a499
Author: Darrick J. Wong <darrick.wong@oracle.com>
Date:   Fri Nov 7 21:26:14 2014 -0500

    dumpe2fs: don't crash when the user provides no block device argument
    
    If the user doesn't provide any arguments, the guard fails to run and
    the whole thing segfaults on ext2fs_open2().  Don't do that.
    
    Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
    Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c
index 1eae5a3..4185d6e 100644
--- a/misc/dumpe2fs.c
+++ b/misc/dumpe2fs.c
@@ -575,7 +575,7 @@ int main (int argc, char ** argv)
 			usage();
 		}
 	}
-	if (argc - 1 > optind) {
+	if (optind != argc - 1) {
 		usage();
 		exit(1);
 	}