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io_uring: move flags check to io_uring_sanitise_params

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io_uring_sanitise_params() sanitises most of the setup flags invariants,
move the IORING_SETUP_FLAGS check from io_uring_setup() into it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2025-11-10 13:04:52 +00:00
committed by Jens Axboe
parent 01405895c1
commit 712fbe97c3
1 changed files with 3 additions and 2 deletions
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5
io_uring/io_uring.c
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@@ -3430,6 +3430,9 @@ static int io_uring_sanitise_params(struct io_uring_params *p)
{
unsigned flags = p->flags;
if (flags & ~IORING_SETUP_FLAGS)
return -EINVAL;
/* There is no way to mmap rings without a real fd */
if ((flags & IORING_SETUP_REGISTERED_FD_ONLY) &&
!(flags & IORING_SETUP_NO_MMAP))
@@ -3691,8 +3694,6 @@ static long io_uring_setup(u32 entries, struct io_uring_params __user *params)
if (!mem_is_zero(&p.resv, sizeof(p.resv)))
return -EINVAL;
if (p.flags & ~IORING_SETUP_FLAGS)
return -EINVAL;
p.sq_entries = entries;
return io_uring_create(&p, params);
}