This is a note to let you know that I've just added the patch titled
usb: gadget: Fix memleak in gadgetfs_fill_super
to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From 87bed3d7d26c974948a3d6e7176f304b2d41272b Mon Sep 17 00:00:00 2001
From: Zhang Qilong zhangqilong3@huawei.com Date: Tue, 17 Nov 2020 10:16:29 +0800 Subject: usb: gadget: Fix memleak in gadgetfs_fill_super
usb_get_gadget_udc_name will alloc memory for CHIP in "Enomem" branch. we should free it before error returns to prevent memleak.
Fixes: 175f712119c57 ("usb: gadget: provide interface for legacy gadgets to get UDC name") Reported-by: Hulk Robot hulkci@huawei.com Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Zhang Qilong zhangqilong3@huawei.com Link: https://lore.kernel.org/r/20201117021629.1470544-3-zhangqilong3@huawei.com Cc: stable stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/gadget/legacy/inode.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 1b430b36d0a6..71e7d10dd76b 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -2039,6 +2039,9 @@ gadgetfs_fill_super (struct super_block *sb, struct fs_context *fc) return 0;
Enomem: + kfree(CHIP); + CHIP = NULL; + return -ENOMEM; }