Forwarded: [syzbot test] WARNING in usb_composite_setup_continue

From: syzbot

Date: Mon Sep 07 2026 - 00:36:00 EST


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Subject: [syzbot test] WARNING in usb_composite_setup_continue
Author: tkdkei@xxxxxxxxxx

Hi,

Please test the attached two-fix patch on the current USB testing branch.

The same reproducer exercises both usb_composite_setup_continue() and __fsg_is_set() during rapid configuration transitions.

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing

Thanks,
Keisuke Tsukuda