From: Karel Zak <kzak@redhat.com>
Date: Tue, 30 Apr 2024 09:04:32 +0000 (+0200)
Subject: fsck.minix: fix possible overrun
X-Git-Tag: v2.42-start~360
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a972f4096b7c730acf57db35df01ea3788de986a;p=thirdparty%2Futil-linux.git

fsck.minix: fix possible overrun

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/disk-utils/fsck.minix.c b/disk-utils/fsck.minix.c
index 03a47460e..08903587b 100644
--- a/disk-utils/fsck.minix.c
+++ b/disk-utils/fsck.minix.c
@@ -548,7 +548,7 @@ get_dirsize(void) {
 		block = Inode[ROOT_INO].i_zone[0];
 	read_block(block, blk);
 
-	for (size = 16; size < MINIX_BLOCK_SIZE; size <<= 1) {
+	for (size = 16; size + 2 < MINIX_BLOCK_SIZE; size <<= 1) {
 		if (strcmp(blk + size + 2, "..") == 0) {
 			dirsize = size;
 			namelen = size - 2;