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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
commitd0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch)
tree7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /fs/ext2/xattr.c
parente914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff)
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'fs/ext2/xattr.c')
-rw-r--r--fs/ext2/xattr.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 1a5e3bff0..b7f896f3f 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -759,10 +759,19 @@ void
ext2_xattr_delete_inode(struct inode *inode)
{
struct buffer_head *bh = NULL;
+ struct ext2_sb_info *sbi = EXT2_SB(inode->i_sb);
down_write(&EXT2_I(inode)->xattr_sem);
if (!EXT2_I(inode)->i_file_acl)
goto cleanup;
+
+ if (!ext2_data_block_valid(sbi, EXT2_I(inode)->i_file_acl, 0)) {
+ ext2_error(inode->i_sb, "ext2_xattr_delete_inode",
+ "inode %ld: xattr block %d is out of data blocks range",
+ inode->i_ino, EXT2_I(inode)->i_file_acl);
+ goto cleanup;
+ }
+
bh = sb_bread(inode->i_sb, EXT2_I(inode)->i_file_acl);
if (!bh) {
ext2_error(inode->i_sb, "ext2_xattr_delete_inode",