[PATCH] mt76: mt7615: fix memory leak in mt7615_coredump_work
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2021-02-19 17:23:17
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
Similar to the issue fixed in mt7921_coredump_work, fix a possible memory
leak in mt7615_coredump_work routine.
Fixes: d2bf7959d9c0f ("mt76: mt7663: introduce coredump support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 9bae2f66e1ce..3c4fbe275f49 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c@@ -2313,8 +2313,10 @@ void mt7615_coredump_work(struct work_struct *work) break; skb_pull(skb, sizeof(struct mt7615_mcu_rxd)); - if (data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) - break; + if (data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) { + dev_kfree_skb(skb); + continue; + } memcpy(data, skb->data, skb->len); data += skb->len;
--
2.29.2