From 08e38cee9be56eed0905c1bbbc33c414c05a5ef4 Mon Sep 17 00:00:00 2001
From: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Date: Tue, 28 Oct 2025 23:26:30 +0530
Subject: [PATCH] Bluetooth: btrtl: Fix memory leak in
 rtlbt_parse_firmware_v2()

[ Upstream commit 1c21cf89a66413eb04b2d22c955b7a50edc14dfa ]

The memory allocated for ptr using kvmalloc() is not freed on the last
error path. Fix that by freeing it on that error path.

Fixes: 9a24ce5e29b1 ("Bluetooth: btrtl: Firmware format v2 support")
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/btrtl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 6abd962502e3..1d4a7887abcc 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -625,8 +625,10 @@ static int rtlbt_parse_firmware_v2(struct hci_dev *hdev,
 		len += entry->len;
 	}
 
-	if (!len)
+	if (!len) {
+		kvfree(ptr);
 		return -EPERM;
+	}
 
 	*_buf = ptr;
 	return len;