Emulation/switch-linux
1
0
Fork 0
mirror of https://github.com/fail0verflow/switch-linux.git synced 2025-05-04 02:34:21 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

ext4: fix data offset overflow on 32-bit archs in ext4_inline_data_fiemap()

Browse source 
On 32-bit archs when sector_t is defined as 32-bit the logic computing
data offset in ext4_inline_data_fiemap(). Fix that by properly typing
the shifted value.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Jan Kara 2013-05-31 19:33:42 -04:00 • committed by Theodore Ts'o
parent 566370a2e5
commit eaf3793728
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
fs/ext4/inline.c
View file

@ -1842,7 +1842,7 @@ int ext4_inline_data_fiemap(struct inode *inode,
if (error) if (error)
goto out; goto out;
physical = iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits; physical = (__u64)iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits;
physical += (char *)ext4_raw_inode(&iloc) - iloc.bh->b_data; physical += (char *)ext4_raw_inode(&iloc) - iloc.bh->b_data;
physical += offsetof(struct ext4_inode, i_block); physical += offsetof(struct ext4_inode, i_block);
length = i_size_read(inode); length = i_size_read(inode);