tree 45f0ce3a176c3562ff308189ced71ebb6f0a1110
parent 221e583a735fc5d879d83c2a76b8ee5afcbdf146
author Jan Kara <jack@ghost.suse.cz> 1210091177 +0200
committer Jan Kara <jack@suse.cz> 1210146592 +0200

udf: Fix memory corruption when fs mounted with noadinicb option

When UDF filesystem is mounted with noadinicb mount option, it
happens that we extend an empty directory with a block. A code in
udf_add_entry() didn't count with this possibility and used
uninitialized data leading to memory and filesystem corruption.
Add a check whether file already has some extents before operating
on them.

Signed-off-by: Jan Kara <jack@suse.cz>