Re: [PATCH v3 2/4] nvme: reject invalid pr_read_keys() num_keys values

[Hannes Reinecke]

On 12/1/25 22:43, Stefan Hajnoczi wrote:
> The pr_read_keys() interface has a u32 num_keys parameter. The NVMe
> Reservation Report command has a u32 maximum length. Reject num_keys
> values that are too large to fit.
>
> This will become important when pr_read_keys() is exposed to untrusted
> userspace via an <linux/pr.h> ioctl.
>
> Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
> ---
>   drivers/nvme/host/pr.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                  Kernel Storage Architect
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