linux-ext4 - [PATCH 02/39] e2fuzz: exercise fuzzed blocks more aggressively

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 25 Oct 2014 13:56:36 -0700
From:	"Darrick J. Wong" <darrick.wong@...cle.com>
To:	tytso@....edu, darrick.wong@...cle.com
Cc:	linux-ext4@...r.kernel.org
Subject: [PATCH 02/39] e2fuzz: exercise fuzzed blocks more aggressively

Exercise fuzzed metadata blocks more aggressively by expanding up to
50000 files (instead of just test.1, which might not hit anything).
Fix a typo while we're at it.

Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
---
 misc/e2fuzz.sh |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)


diff --git a/misc/e2fuzz.sh b/misc/e2fuzz.sh
index a261d5a..4cb7b61 100755
--- a/misc/e2fuzz.sh
+++ b/misc/e2fuzz.sh
@@ -34,7 +34,7 @@ print_help() {
 	echo "-p:	Use system's mke2fs/e2fsck/tune2fs tools."
 	echo "-s:	Create FS images of this size. (${SZ})"
 	echo "-S:	Copy files from this dir. (${SRCDIR})"
-	echo "-x:	Run e2fck at most this many times. (${MAX_FSCK})"
+	echo "-x:	Run e2fsck at most this many times. (${MAX_FSCK})"
 	test "${HAS_FUSE2FS}" -gt 0 && echo "-u:	Use fuse2fs instead of the kernel."
 	exit 0
 }
@@ -192,12 +192,12 @@ seq 1 "${PASSES}" | while read pass; do
 		find "${TESTMNT}/test.1/" -type f -size -1048576k -print0 | xargs -0 cat > /dev/null 2>> "${OPS_LOG}"
 
 		echo "+++ expand"
-		find "${TESTMNT}/test.1/" -type f 2> /dev/null | while read f; do
+		find "${TESTMNT}/" -type f 2> /dev/null | head -n 50000 | while read f; do
 			attr -l "$f" > /dev/null 2>> "${OPS_LOG}"
-			mv "$f" "$f.longer" > /dev/null 2>> "${OPS_LOG}"
 			if [ -f "$f" -a -w "$f" ]; then
 				dd if=/dev/zero bs="${BLK_SZ}" count=1 >> "$f" 2>> "${OPS_LOG}"
 			fi
+			mv "$f" "$f.longer" > /dev/null 2>> "${OPS_LOG}"
 		done
 		sync
 

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html