From 7cc80c98070ccc7940fc28811c92cca0a681015d Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Fri, 3 Jun 2016 17:09:24 -0700 Subject: [PATCH] Drivers: hv: don't leak memory in vmbus_establish_gpadl() In some cases create_gpadl_header() allocates submessages but we never free them. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/channel.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 2b109e8a8c97..a68830c848e4 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -388,7 +388,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer, struct vmbus_channel_gpadl_header *gpadlmsg; struct vmbus_channel_gpadl_body *gpadl_body; struct vmbus_channel_msginfo *msginfo = NULL; - struct vmbus_channel_msginfo *submsginfo; + struct vmbus_channel_msginfo *submsginfo, *tmp; struct list_head *curr; u32 next_gpadl_handle; unsigned long flags; @@ -445,6 +445,10 @@ cleanup: spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); list_del(&msginfo->msglistentry); spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags); + list_for_each_entry_safe(submsginfo, tmp, &msginfo->submsglist, + msglistentry) { + kfree(submsginfo); + } kfree(msginfo); return ret; -- 2.20.1