eec0db86fa
- Update journal backup blocks in sb after resize (#505339) - Fix memory leak in extent handling functions - Fix bug in inode writing in extent code, clobbered i_extra_isize etc
56 lines
2.2 KiB
Diff
56 lines
2.2 KiB
Diff
commit 125a36780626cdb0fc4d62fd529486baa8bce54c
|
|
Author: Eric Sandeen <sandeen@redhat.com>
|
|
Date: Wed Jun 17 18:49:01 2009 -0400
|
|
|
|
libext2fs: write only core inode in update_path()
|
|
|
|
The ext2_extent_handle only has a struct ext2_inode allocated on
|
|
it, and the same amount copied into it in that same function,
|
|
but in update_path() we're possibly writing out more than that -
|
|
for example 256 bytes, from that address. This causes uninitialized
|
|
memory to get written to disk, overwriting the parts of the
|
|
inode past the osd2 member (the end of the smaller structure).
|
|
|
|
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
|
|
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
|
|
|
|
diff --git a/lib/ext2fs/extent.c b/lib/ext2fs/extent.c
|
|
index 2b88739..35b080e 100644
|
|
--- a/lib/ext2fs/extent.c
|
|
+++ b/lib/ext2fs/extent.c
|
|
@@ -546,8 +546,8 @@ static errcode_t update_path(ext2_extent_handle_t handle)
|
|
struct ext3_extent_idx *ix;
|
|
|
|
if (handle->level == 0) {
|
|
- retval = ext2fs_write_inode_full(handle->fs, handle->ino,
|
|
- handle->inode, EXT2_INODE_SIZE(handle->fs->super));
|
|
+ retval = ext2fs_write_inode(handle->fs, handle->ino,
|
|
+ handle->inode);
|
|
} else {
|
|
ix = handle->path[handle->level - 1].curr;
|
|
blk = ext2fs_le32_to_cpu(ix->ei_leaf) +
|
|
@@ -1011,8 +1011,8 @@ static errcode_t extent_node_split(ext2_extent_handle_t handle)
|
|
|
|
/* new node hooked in, so update inode block count (do this here?) */
|
|
handle->inode->i_blocks += handle->fs->blocksize / 512;
|
|
- retval = ext2fs_write_inode_full(handle->fs, handle->ino,
|
|
- handle->inode, EXT2_INODE_SIZE(handle->fs->super));
|
|
+ retval = ext2fs_write_inode(handle->fs, handle->ino,
|
|
+ handle->inode);
|
|
if (retval)
|
|
goto done;
|
|
|
|
@@ -1370,9 +1370,8 @@ errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags)
|
|
|
|
retval = ext2fs_extent_delete(handle, flags);
|
|
handle->inode->i_blocks -= handle->fs->blocksize / 512;
|
|
- retval = ext2fs_write_inode_full(handle->fs,
|
|
- handle->ino, handle->inode,
|
|
- EXT2_INODE_SIZE(handle->fs->super));
|
|
+ retval = ext2fs_write_inode(handle->fs, handle->ino,
|
|
+ handle->inode);
|
|
ext2fs_block_alloc_stats(handle->fs, extent.e_pblk, -1);
|
|
}
|
|
} else {
|
|
|