diff options
| author | Breno Leitao <leitao@debian.org> | 2023-02-23 08:43:53 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-04-03 07:16:14 -0600 |
| commit | e1fe7ee885dc0712e982ee465d9f8b96254c30c1 (patch) | |
| tree | 855f06df7edca5065d29434d55ccd5d3f5423525 /io_uring/io_uring.c | |
| parent | efba1a9e653e107577a48157b5424878c46f2285 (diff) | |
| download | linux-next-e1fe7ee885dc0712e982ee465d9f8b96254c30c1.tar.gz | |
io_uring: Add KASAN support for alloc_caches
Add support for KASAN in the alloc_caches (apoll and netmsg_cache).
Thus, if something touches the unused caches, it will raise a KASAN
warning/exception.
It poisons the object when the object is put to the cache, and unpoisons
it when the object is gotten or freed.
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/20230223164353.2839177-2-leitao@debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index d72aa92ce2d6..24be4992821b 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -310,8 +310,8 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p) INIT_LIST_HEAD(&ctx->sqd_list); INIT_LIST_HEAD(&ctx->cq_overflow_list); INIT_LIST_HEAD(&ctx->io_buffers_cache); - io_alloc_cache_init(&ctx->apoll_cache); - io_alloc_cache_init(&ctx->netmsg_cache); + io_alloc_cache_init(&ctx->apoll_cache, sizeof(struct async_poll)); + io_alloc_cache_init(&ctx->netmsg_cache, sizeof(struct io_async_msghdr)); init_completion(&ctx->ref_comp); xa_init_flags(&ctx->personalities, XA_FLAGS_ALLOC1); mutex_init(&ctx->uring_lock); |