From: Dongliang Mu Date: Fri, 11 Jun 2021 01:58:12 +0000 (+0800) Subject: ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others X-Git-Tag: v5.15~576^2^2~4^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ab372c2293f5d0b279f31c8d768566ea37602dc9;p=platform%2Fkernel%2Flinux-starfive.git ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others In hwsim_subscribe_all_others, the error handling code performs incorrectly if the second hwsim_alloc_edge fails. When this issue occurs, it goes to sub_fail, without cleaning the edges allocated before. Fixes: f25da51fdc38 ("ieee802154: hwsim: add replacement for fakelb") Signed-off-by: Dongliang Mu Acked-by: Alexander Aring Link: https://lore.kernel.org/r/20210611015812.1626999-1-mudongliangabcd@gmail.com Signed-off-by: Stefan Schmidt --- diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c index da91352..366eaae 100644 --- a/drivers/net/ieee802154/mac802154_hwsim.c +++ b/drivers/net/ieee802154/mac802154_hwsim.c @@ -715,6 +715,8 @@ static int hwsim_subscribe_all_others(struct hwsim_phy *phy) return 0; +sub_fail: + hwsim_edge_unsubscribe_me(phy); me_fail: rcu_read_lock(); list_for_each_entry_rcu(e, &phy->edges, list) { @@ -722,8 +724,6 @@ me_fail: hwsim_free_edge(e); } rcu_read_unlock(); -sub_fail: - hwsim_edge_unsubscribe_me(phy); return -ENOMEM; }