-stable review patch. If anyone has any objections, please let us know. ------------------
From: Badari Pulavarty <[EMAIL PROTECTED]> Need to initialize map_bh.b_state to zero. Otherwise, in case of a faulty user-buffer its possible to go into dio_zero_block() and submit a page by mistake - since it checks for buffer_new(). http://marc.info/?l=linux-kernel&m=118551339032528&w=2 akpm: Linus had a (better) patch to just do a kzalloc() in there, but it got lost. Probably this version is better for -stable anwyay. Signed-off-by: Badari Pulavarty <[EMAIL PROTECTED]> Acked-by: Joe Jin <[EMAIL PROTECTED]> Acked-by: Zach Brown <[EMAIL PROTECTED]> Cc: gurudas pai <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]> --- fs/direct-io.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -974,6 +974,7 @@ direct_io_worker(int rw, struct kiocb *i dio->get_block = get_block; dio->end_io = end_io; dio->map_bh.b_private = NULL; + dio->map_bh.b_state = 0; dio->final_block_in_bio = -1; dio->next_block_for_io = -1; -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
