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Commit 2b533456 authored by Vamsi Krishna Gattupalli's avatar Vamsi Krishna Gattupalli
Browse files

msm: adsprpc: Validate the CID 



Validating the CID is a valid channel number.

Change-Id: Ic11a259e8a04088f54b3df4bad982e669b02ee71
Acked-by: default avatarAbhishek Singh <abhishes@qti.qualcomm.com>
Signed-off-by: default avatarVamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
parent 367074bf

drivers/char/adsprpc.c

+5 −2
Original line number Diff line number Diff line
@@ -1466,8 +1466,11 @@ static int context_alloc(struct fastrpc_file *fl, uint32_t kernel, 


	spin_lock(&fl->hlock);

	hlist_add_head(&ctx->hn, &clst->pending);

	cid = (fl->cid >= ADSP_DOMAIN_ID && fl->cid < NUM_CHANNELS)

			? fl->cid : 0;

	if (!(fl->cid >= ADSP_DOMAIN_ID && fl->cid < NUM_CHANNELS)) {

		err = -ECHRNG;

		goto bail;

	}

	cid = fl->cid;

	chan = &me->channel[cid];

	spin_unlock(&fl->hlock);