This is a note to let you know that I've just added the patch titled
cosa: Add missing kfree in error path of cosa_write
to the 5.9-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:
cosa-add-missing-kfree-in-error-path-of-cosa_write.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f3f08c5fe957ce3c92b1a207487b942ff64ee46e
Author: Wang Hai <wanghai38@xxxxxxxxxx>
Date: Tue Nov 10 22:46:14 2020 +0800
cosa: Add missing kfree in error path of cosa_write
[ Upstream commit 52755b66ddcef2e897778fac5656df18817b59ab ]
If memory allocation for 'kbuf' succeed, cosa_write() doesn't have a
corresponding kfree() in exception handling. Thus add kfree() for this
function implementation.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Hai <wanghai38@xxxxxxxxxx>
Acked-by: Jan "Yenya" Kasprzak <kas@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201110144614.43194-1-wanghai38@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index f8aed0696d775..2369ca250cd65 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -889,6 +889,7 @@ static ssize_t cosa_write(struct file *file,
chan->tx_status = 1;
spin_unlock_irqrestore(&cosa->lock, flags);
up(&chan->wsem);
+ kfree(kbuf);
return -ERESTARTSYS;
}
}
