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(parent: 221e583) | patch
udf: Fix memory corruption when fs mounted with noadinicb option
authorJan Kara <jack@ghost.suse.cz>
Tue, 6 May 2008 16:26:17 +0000 (18:26 +0200)
committerJan Kara <jack@suse.cz>
Wed, 7 May 2008 07:49:52 +0000 (09:49 +0200)
commit9afadc4b1fd25337003832c9a4668f9bd42cdda9
tree45f0ce3a176c3562ff308189ced71ebb6f0a1110tree | snapshot
parent221e583a735fc5d879d83c2a76b8ee5afcbdf146commit | diff
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>
fs/udf/namei.c diff | blob | history
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