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(parent: 133008e) | patch
lib/iov_iter.c: initialize bi.bi_idx before iterating over bvec
authorMing Lei <ming.lei@redhat.com>
Thu, 31 Oct 2024 11:02:24 +0000 (19:02 +0800)
committerJens Axboe <axboe@kernel.dk>
Thu, 31 Oct 2024 13:40:34 +0000 (07:40 -0600)
commit496a51b37143c690a06612a6bd58827ef2341761
tree60d2a9a84c55f3febede757ed57bf020efa638d6tree
parent133008e84b99e4f5f8cf3d8b768c995732df9406commit | diff
lib/iov_iter.c: initialize bi.bi_idx before iterating over bvec

Initialize bi.bi_idx as 0 before iterating over bvec, otherwise
garbage data can be used as ->bi_idx.

Cc: Christoph Hellwig <hch@lst.de>
Reported-and-tested-by: Klara Modin <klarasmodin@gmail.com>
Fixes: e4e535bff2bc ("iov_iter: don't require contiguous pages in iov_iter_extract_bvec_pages")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
lib/iov_iter.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)