6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jakub Kicinski <kuba@xxxxxxxxxx> [ Upstream commit 5d78b73e851455d525a064f3b042b29fdc0c1a4a ] Make sure to free the already-parsed mcast_groups if we don't get an ack from the kernel when reading family info. This is part of the ynl_sock_create() error path, so we won't get a call to ynl_sock_destroy() to free them later. Fixes: 86878f14d71a ("tools: ynl: user space helpers") Acked-by: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx> Link: https://lore.kernel.org/r/20240220161112.2735195-3-kuba@xxxxxxxxxx Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- tools/net/ynl/lib/ynl.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/net/ynl/lib/ynl.c b/tools/net/ynl/lib/ynl.c index 0a7fe6a13f7b9..11a7a889d279c 100644 --- a/tools/net/ynl/lib/ynl.c +++ b/tools/net/ynl/lib/ynl.c @@ -572,7 +572,13 @@ static int ynl_sock_read_family(struct ynl_sock *ys, const char *family_name) return err; } - return ynl_recv_ack(ys, err); + err = ynl_recv_ack(ys, err); + if (err < 0) { + free(ys->mcast_groups); + return err; + } + + return 0; } struct ynl_sock * -- 2.43.0