This is a note to let you know that I've just added the patch titled caif: fix memory leak in cfctrl_linkup_request() to the 6.0-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: caif-fix-memory-leak-in-cfctrl_linkup_request.patch and it can be found in the queue-6.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d8900bdbe7ac62801d750f1489fb347585a286c1 Author: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> Date: Wed Jan 4 14:51:46 2023 +0800 caif: fix memory leak in cfctrl_linkup_request() [ Upstream commit fe69230f05897b3de758427b574fc98025dfc907 ] When linktype is unknown or kzalloc failed in cfctrl_linkup_request(), pkt is not released. Add release process to error path. Fixes: b482cd2053e3 ("net-caif: add CAIF core protocol stack") Fixes: 8d545c8f958f ("caif: Disconnect without waiting for response") Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> Reviewed-by: Jiri Pirko <jiri@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230104065146.1153009-1-shaozhengchao@xxxxxxxxxx Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c index 2809cbd6b7f7..d8cb4b2a076b 100644 --- a/net/caif/cfctrl.c +++ b/net/caif/cfctrl.c @@ -269,11 +269,15 @@ int cfctrl_linkup_request(struct cflayer *layer, default: pr_warn("Request setup of bad link type = %d\n", param->linktype); + cfpkt_destroy(pkt); return -EINVAL; } req = kzalloc(sizeof(*req), GFP_KERNEL); - if (!req) + if (!req) { + cfpkt_destroy(pkt); return -ENOMEM; + } + req->client_layer = user_layer; req->cmd = CFCTRL_CMD_LINK_SETUP; req->param = *param;