Re: [PATCH 3/3] usb: mtu3: fix list_head check warning

On Thu, 2021-12-09 at 12:10 +0300, Sergey Shtylyov wrote:

Hello!

On 09.12.2021 6:14, Chunfeng Yun wrote:

quoted

This is caused by uninitialization of list_head.

    No such word, suggesting to replace with "not initializing". :-)

Will fix it, thanks

quoted

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>

[...]

MBR, Sergey