HID: hidraw: fix a problem of memory leak in hidraw_release()
authorSu Hui <suhui@nfschina.com>
Thu, 25 Jan 2024 06:32:26 +0000 (14:32 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 5 Feb 2024 20:14:34 +0000 (20:14 +0000)
commit54a55b63220691d4e66919618ac37729a9d23ecf
tree6ef1d504a8f256b55a310623fbff19faf6860f3d
parent65ead8468c21c2676d4d06f50b46beffdea69df1
HID: hidraw: fix a problem of memory leak in hidraw_release()

[ Upstream commit a3bdcdd022c68942a774e8e63424cc11c85aab78 ]

'struct hidraw_list' is a circular queue whose head can be smaller than
tail. Using 'list->tail != list->head' to release all memory that should
be released.

Fixes: a5623a203cff ("HID: hidraw: fix memory leak in hidraw_release()")
Signed-off-by: Su Hui <suhui@nfschina.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/hid/hidraw.c