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? Thanks, Hans
