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io_uring/rsrc: zero node's rsrc data on alloc
author
Pavel Begunkov
<asml.silence@gmail.com>
Tue, 11 Apr 2023 11:06:06 +0000
(12:06 +0100)
committer
Jens Axboe
<axboe@kernel.dk>
Wed, 12 Apr 2023 18:09:41 +0000
(12:09 -0600)
struct io_rsrc_node::rsrc_data field is initialised on rsrc removal and
shouldn't be used before that, still let's play safe and zero the field
on alloc.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link:
https://lore.kernel.org/r/09bd03cedc8da8a7974c5e6e4bf0489fd16593ab.1681210788.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/rsrc.c
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diff --git
a/io_uring/rsrc.c
b/io_uring/rsrc.c
index
73f9e10
..
329cc38
100644
(file)
--- a/
io_uring/rsrc.c
+++ b/
io_uring/rsrc.c
@@
-218,6
+218,7
@@
static struct io_rsrc_node *io_rsrc_node_alloc(struct io_ring_ctx *ctx)
return NULL;
}
+ ref_node->rsrc_data = NULL;
ref_node->refs = 1;
INIT_LIST_HEAD(&ref_node->node);
INIT_LIST_HEAD(&ref_node->item_list);