From: Geliang Tang <tanggeliang@xxxxxxxxxx>
The local address entries on userspace_pm_local_addr_list are allocated
by sock_kmalloc().
It's then required to use sock_kfree_s() instead of kfree() to free
these entries in order to adjust the allocated size on the sk side.
Fixes: 24430f8bf516 ("mptcp: add address into userspace pm list")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Geliang Tang <tanggeliang@xxxxxxxxxx>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
---
net/mptcp/pm_userspace.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
index 2cceded3a83a211ffa83f5511fa16f153b49e6bf..56dfea9862b7b24dd0eaa8bbedcf22a7f6829ccf 100644
--- a/net/mptcp/pm_userspace.c
+++ b/net/mptcp/pm_userspace.c
@@ -91,6 +91,7 @@ static int mptcp_userspace_pm_delete_local_addr(struct mptcp_sock *msk,
struct mptcp_pm_addr_entry *addr)
{
struct mptcp_pm_addr_entry *entry, *tmp;
+ struct sock *sk = (struct sock *)msk;
list_for_each_entry_safe(entry, tmp, &msk->pm.userspace_pm_local_addr_list, list) {
if (mptcp_addresses_equal(&entry->addr, &addr->addr, false)) {
@@ -98,7 +99,7 @@ static int mptcp_userspace_pm_delete_local_addr(struct mptcp_sock *msk,
* be used multiple times (e.g. fullmesh mode).
*/
list_del_rcu(&entry->list);
- kfree(entry);
+ sock_kfree_s(sk, entry, sizeof(*entry));
msk->pm.local_addr_used--;
return 0;
}
--
2.45.2
