On Thu, Apr 4, 2019 at 4:51 PM Hans Verkuil <hverkuil@xxxxxxxxx> wrote: > > On 4/4/19 4:47 PM, Alexander Potapenko wrote: > > On Wed, Mar 20, 2019 at 9:35 PM syzbot > > <syzbot+6c0effb5877f6b0344e2@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > >> > >> syzbot has bisected this bug to: > >> > >> commit 6d469a202ee73196d0df76025af80bd6a379e658 > >> Author: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> > >> Date: Sun May 14 17:07:21 2017 +0000 > >> > >> Merge tag 'v4.12-rc1' into patchwork > >> > >> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12639fd7200000 > >> start commit: 6d469a20 Merge tag 'v4.12-rc1' into patchwork > >> git tree: upstream > >> final crash: https://syzkaller.appspot.com/x/report.txt?x=15639fd7200000 > >> console output: https://syzkaller.appspot.com/x/log.txt?x=11639fd7200000 > >> kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 > >> dashboard link: https://syzkaller.appspot.com/bug?extid=6c0effb5877f6b0344e2 > >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1312062b400000 > >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131bd093400000 > >> > >> Reported-by: syzbot+6c0effb5877f6b0344e2@xxxxxxxxxxxxxxxxxxxxxxxxx > >> Fixes: 6d469a20 ("Merge tag 'v4.12-rc1' into patchwork") > >> > >> -- > >> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > >> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > >> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/000000000000462a4105848c8e12%40google.com. > >> For more options, visit https://groups.google.com/d/optout. > > > > I believe this bug is caused by vivid_vid_cap_s_selection() calling > > kfree(dev->bitmap_cap). > > This makes little sense, as dev->bitmap_cap seems to be allocated > > using vzalloc(). > > > > Yup, that should be vfree. There was a similar problem with bitmap_out that > I fixed, but it looks I missed this one. Can you make a patch? Yes, I've almost hit the send button :) > Thanks, > > Hans -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg
