Re: [PATCH] sctp: fix a potential buffer overflow in sctp_sched_set_sched()

[Simon Horman]

On Tue, May 02, 2023 at 08:26:30AM +0000, Gavrilov Ilia wrote:
> The 'sched' index value must be checked before accessing an element
> of the 'sctp_sched_ops' array. Otherwise, it can lead to buffer overflow.
> 
> Note that it's harmless since the 'sched' parameter is checked before
> calling 'sctp_sched_set_sched'.
> 
> Found by InfoTeCS on behalf of Linux Verification Center
> (linuxtesting.org) with SVACE.
> 
> Fixes: 5bbbbe32a431 ("sctp: introduce stream scheduler foundations")
> Signed-off-by: Ilia.Gavrilov <Ilia.Gavrilov@xxxxxxxxxxx>

Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxx>