On Sat, 07 Apr 2018 12:19:33 +0200, Dmitry Vyukov wrote:
On Sat, Apr 7, 2018 at 11:56 AM, Takashi Iwai tiwai@suse.de wrote:
On Fri, 06 Apr 2018 23:14:01 +0200, syzbot wrote:
syzbot has found reproducer for the following crash on upstream commit 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +0000) Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=150189c103427d31a053
So far this crash happened 15 times on upstream. C reproducer: https://syzkaller.appspot.com/x/repro.c?id=5405588854931456 syzkaller reproducer: https://syzkaller.appspot.com/x/repro.syz?id=5561439796330496 Raw console output: https://syzkaller.appspot.com/x/log.txt?id=5697900571000832 Kernel config: https://syzkaller.appspot.com/x/.config?id=-5813481738265533882 compiler: gcc (GCC) 8.0.1 20180301 (experimental)
Thanks to the reproducer, I could spot out now. Below is the patch (which was submitted as well).
Great!
There are 3 more recent stalls in sound, does this fix them as well?
https://groups.google.com/forum/#!msg/syzkaller-bugs/MGfk8WH3O6k/ja2xKpdcCAA... https://groups.google.com/forum/#!msg/syzkaller-bugs/74HglwU94go/T89ohzlYCAA... https://groups.google.com/forum/#!msg/syzkaller-bugs/D2xWV7WTRDk/5y2kZyBICAA...
Yes, very likely.
Takashi