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net: bridge: Bounce invalid boolopts

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[ Upstream commit 8625f5748f ]

The bridge driver currently tolerates options that it does not recognize.
Instead, it should bounce them.

Fixes: a428afe82f ("net: bridge: add support for user-controlled bool options")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/e6fdca3b5a8d54183fbda075daffef38bdd7ddce.1757070067.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Petr Machata
2025-09-05 13:12:33 +02:00
committed by Greg Kroah-Hartman
parent 4eec1e293d
commit f75a327ca7
1 changed files with 7 additions and 0 deletions
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7
net/bridge/br.c
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@@ -324,6 +324,13 @@ int br_boolopt_multi_toggle(struct net_bridge *br,
int err = 0; int err = 0;
int opt_id; int opt_id;
opt_id = find_next_bit(&bitmap, BITS_PER_LONG, BR_BOOLOPT_MAX);
if (opt_id != BITS_PER_LONG) {
NL_SET_ERR_MSG_FMT_MOD(extack, "Unknown boolean option %d",
opt_id);
return -EINVAL;
}
for_each_set_bit(opt_id, &bitmap, BR_BOOLOPT_MAX) { for_each_set_bit(opt_id, &bitmap, BR_BOOLOPT_MAX) {
bool on = !!(bm->optval & BIT(opt_id)); bool on = !!(bm->optval & BIT(opt_id));