armbian/linux-rockchip
0
0
Fork 0
mirror of https://github.com/armbian/linux-rockchip.git synced 2026-01-06 11:08:10 -08:00
Code Issues Packages Projects Releases Wiki Activity

net: mvneta: Prevent out of bounds read in mvneta_config_rss()

Browse Source 
The pp->indir[0] value comes from the user.  It is passed to:

	if (cpu_online(pp->rxq_def))

inside the mvneta_percpu_elect() function.  It needs bounds checkeding
to ensure that it is not beyond the end of the cpu bitmap.

Fixes: cad5d847a0 ("net: mvneta: Fix the CPU choice in mvneta_percpu_elect")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Carpenter
2022-12-02 12:58:26 +03:00
committed by David S. Miller
parent d50b7914fa
commit e8b4fc1390
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/marvell/mvneta.c
View File

@@ -4927,6 +4927,9 @@ static int mvneta_config_rss(struct mvneta_port *pp)
napi_disable(&pp->napi);
}
if (pp->indir[0] >= nr_cpu_ids)
return -EINVAL;
pp->rxq_def = pp->indir[0];
/* Update unicast mapping */