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From: Yura P. <cha...@us...> - 2005-07-02 13:58:10
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Changes by: cha0smaster Update of /cvsroot/linux-ntfs/ntfsprogs In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv21830 Modified Files: ChangeLog Log Message: Fix memory managament error in ntfs_inode_close. ntfs_extent_inode_open allocates buffer for up to 4 extent inodes, to prevent many reallocates. But ntfs_inode_close always reallocate buffer to store exactly @nr_extents inodes. Bug will arise in following scenario: 1) ntfs_extent_inode_open (1 extent, allocate buffer for 4) 2) ntfs_extent_inode_open (2 extents, use already allocated buffer) 3) ntfs_inode_close(extent_ni) (1 extent, reallocate buffer for 1 extent) 4) ntfs_extent_inode_open (2 extents, don't reallocate buffer because it should be for 4 elements, but really it's for 1, write to unitialized space, segfault) Index: ChangeLog =================================================================== RCS file: /cvsroot/linux-ntfs/ntfsprogs/ChangeLog,v retrieving revision 1.230 retrieving revision 1.231 diff -u -p -r1.230 -r1.231 --- ChangeLog 20 Jun 2005 14:31:30 -0000 1.230 +++ ChangeLog 2 Jul 2005 13:58:02 -0000 1.231 @@ -1,3 +1,7 @@ +xx/xx/xxxx - 1.10.1-WIP + + - Fix memory managament error in ntfs_inode_close. (Yura) + 20/06/2005 - 1.10.0 - Lots of new features, enhancements, and bug fixes. - Add start_vcn parameter to ntfs_get_size_for_mapping_pairs() and |
