net: dsa: b53: fix an off by one in checking "vlan->vid"

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commit 8e4052c32d upstream.

The > comparison should be >= to prevent accessing one element beyond
the end of the dev->vlans[] array in the caller function, b53_vlan_add().
The "dev->vlans" array is allocated in the b53_switch_init() function
and it has "dev->num_vlans" elements.

Fixes: a2482d2ce3 ("net: dsa: b53: Plug in VLAN support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/YAbxI97Dl/pmBy5V@mwanda
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Dan Carpenter 2021-01-19 17:48:03 +03:00 • committed by Greg Kroah-Hartman

parent f0f3d3e6e9

commit 013ed7c845

1 changed files with 1 additions and 1 deletions

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drivers/net/dsa/b53/b53_common.c

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