Re: [PATCH] RDMA/uverbs: Fix typo of sizeof argument

From: Greg KH
Date: Tue Sep 05 2023 - 12:47:04 EST


On Tue, Sep 05, 2023 at 06:32:58PM +0800, Konstantin Meskhidze wrote:
> Since size of 'hdr' pointer and '*hdr' structure is equal on 64-bit
> machines issue probably didn't cause any wrong behavior. But anyway,
> fixing of typo is required.
>
> Fixes: da0f60df7bd5 ("RDMA/uverbs: Prohibit write() calls with too small buffers")
> Co-developed-by: Ivanov Mikhail <ivanov.mikhail1@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Ivanov Mikhail <ivanov.mikhail1@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@xxxxxxxxxx>
> ---
> drivers/infiniband/core/uverbs_main.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
> index 7c9c79c13941..508d6712e14d 100644
> --- a/drivers/infiniband/core/uverbs_main.c
> +++ b/drivers/infiniband/core/uverbs_main.c
> @@ -535,7 +535,7 @@ static ssize_t verify_hdr(struct ib_uverbs_cmd_hdr *hdr,
> if (hdr->in_words * 4 != count)
> return -EINVAL;
>
> - if (count < method_elm->req_size + sizeof(hdr)) {
> + if (count < method_elm->req_size + sizeof(*hdr)) {
> /*
> * rdma-core v18 and v19 have a bug where they send DESTROY_CQ
> * with a 16 byte write instead of 24. Old kernels didn't
> --
> 2.34.1
>

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him
a patch that has triggered this response. He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created. Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
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Please read the section entitled "The canonical patch format" in the
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If you wish to discuss this problem further, or you have questions about
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thanks,

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