Re: [PATCH 3/3] usb: mtu3: fix list_head check warning
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-12-13 14:20:01
Also in:
linux-arm-kernel, linux-mediatek, lkml
On Thu, Dec 09, 2021 at 11:14:24AM +0800, Chunfeng Yun wrote:
This is caused by uninitialization of list_head. BUG: KASAN: use-after-free in __list_del_entry_valid+0x34/0xe4 Call trace: dump_backtrace+0x0/0x298 show_stack+0x24/0x34 dump_stack+0x130/0x1a8 print_address_description+0x88/0x56c __kasan_report+0x1b8/0x2a0 kasan_report+0x14/0x20 __asan_load8+0x9c/0xa0 __list_del_entry_valid+0x34/0xe4 mtu3_req_complete+0x4c/0x300 [mtu3] mtu3_gadget_stop+0x168/0x448 [mtu3] usb_gadget_unregister_driver+0x204/0x3a0 unregister_gadget_item+0x44/0xa4 Reported-by: Yuwen Ng <redacted> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> --- drivers/usb/mtu3/mtu3_gadget.c | 1 + 1 file changed, 1 insertion(+)
What commit does this fix? Should it go to stable kernels? thanks, greg k-h