On Fri, 9 Aug 2019, syzbot wrote: > Hello, > > syzbot has tested the proposed patch and the reproducer did not trigger > crash: > > Reported-and-tested-by: > syzbot+22ae4e3b9fcc8a5c1...@syzkaller.appspotmail.com > > Tested on: > > commit: e96407b4 usb-fuzzer: main usb gadget fuzzer driver > git tree: https://github.com/google/kasan.git > kernel config: https://syzkaller.appspot.com/x/.config?x=cfa2c18fb6a8068e > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > patch: https://syzkaller.appspot.com/x/patch.diff?x=173f2d2c600000 > > Note: testing is done by a robot and is best-effort only.
This shows that this bug is a duplicate of extid=30cf45ebfe0b0c4847a1. This fact is also visible in the console logs; both have lines saying something like: [ 549.416341][ T22] sysfs: cannot create duplicate filename '/class/usbmisc/ldusb0' and [ 549.958755][ T22] ldusb 1-1:0.28: Not able to get a minor for this device. preceding the invalid access. Alan Stern
