Quoting syzbot (2019-11-06 04:32:09)
Hello,
syzbot found the following crash on:
HEAD commit: b1aa9d83 usb: raw: add raw-gadget interface
git tree: https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=16ae2adce00000
kernel config:
https://syzkaller.appspot.com/x/.config?x=79de80330003b5f7
dashboard link:
https://syzkaller.appspot.com/bug?extid=f41c4f7c6d8b0b778780
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=10248158e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16afbf7ce00000
IMPORTANT: if you fix the bug, please add the following tag to the
commit:
Reported-by: syzbot+f41c4f7c6d8b0b778780@xxxxxxxxxxxxxxxxxxxxxxxxx
I suspect this is because of the kthread getting stuck problem reported
by Maciej. Maybe try the commit that Herbert picked up.
#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git linus
Bugs found by USB fuzzer can only be tested on
https://github.com/google/kasan.git tree,
usb-fuzzer branch because USB fuzzer is not upstreamed yet.
See https://goo.gl/tpsmEJ#usb-fuzzer for details.
