The patch titled
ext2: prevent div-by-zero on corrupted fs
has been added to the -mm tree. Its filename is
ext2-prevent-div-by-zero-on-corrupted-fs.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: ext2: prevent div-by-zero on corrupted fs
From: <Andries.Brouwer@xxxxxx>
Mounting an ext2 filesystem with zero s_inodes_per_group will cause a
divide error.
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/ext2/super.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/ext2/super.c~ext2-prevent-div-by-zero-on-corrupted-fs fs/ext2/super.c
--- a/fs/ext2/super.c~ext2-prevent-div-by-zero-on-corrupted-fs
+++ a/fs/ext2/super.c
@@ -781,7 +781,7 @@ static int ext2_fill_super(struct super_
if (EXT2_INODE_SIZE(sb) == 0)
goto cantfind_ext2;
sbi->s_inodes_per_block = sb->s_blocksize / EXT2_INODE_SIZE(sb);
- if (sbi->s_inodes_per_block == 0)
+ if (sbi->s_inodes_per_block == 0 || sbi->s_inodes_per_group == 0)
goto cantfind_ext2;
sbi->s_itb_per_group = sbi->s_inodes_per_group /
sbi->s_inodes_per_block;
_
Patches currently in -mm which might be from Andries.Brouwer@xxxxxx are
fix-for-minix-crash.patch
ext2-prevent-div-by-zero-on-corrupted-fs.patch
-
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