wireguard: allowedips: expand maximum node depth

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commit 46622219aa upstream.

In the allowedips self-test, nodes are inserted into the tree, but it
generated an even amount of nodes, but for checking maximum node depth,
there is of course the root node, which makes the total number
necessarily odd. With two few nodes added, it never triggered the
maximum depth check like it should have. So, add 129 nodes instead of
128 nodes, and do so with a more straightforward scheme, starting with
all the bits set, and shifting over one each time. Then increase the
maximum depth to 129, and choose a better name for that variable to
make it clear that it represents depth as opposed to bits.

Cc: stable@vger.kernel.org
Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20230807132146.2191597-2-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jason A. Donenfeld 2023-08-07 15:21:27 +02:00 • committed by Greg Kroah-Hartman

parent 839aae189e

commit 260ec73757

2 changed files with 14 additions and 10 deletions

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8

drivers/net/wireguard/allowedips.c

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16

drivers/net/wireguard/selftest/allowedips.c

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