Re: KASAN: slab-out-of-bounds Write in vgacon_scroll

2020-01-30 Thread Tetsuo Handa
A fbcon bug found that allocation size was wrong. https://groups.google.com/d/msg/syzkaller-bugs/TVGAFDeUKJo/uchTlvbFAQAJ You can try adding printk() for examining values because you have reproducers. ___ dri-devel mailing list

Re: KASAN: slab-out-of-bounds Write in vgacon_scroll

2020-01-29 Thread Sergey Senozhatsky
Cc-ing Dmitry and Tetsuo Original Message-id: CAA=061eow8amjurblsjy5ntdz-1jearleb+z6hjuyzud0zz...@mail.gmail.com On (20/01/29 23:17), Sergey Senozhatsky wrote: > > Hmm. There is something strange about it. I use vga console quite > > often, and scrolling happens all the time, yet I can't get

Re: KASAN: slab-out-of-bounds Write in vgacon_scroll

2020-01-29 Thread Sergey Senozhatsky
zkal...@googlegroups.com, linux-ker...@vger.kernel.org, > dri-devel@lists.freedesktop.org, linux-fb...@vger.kernel.org > Subject: Re: KASAN: slab-out-of-bounds Write in vgacon_scroll > Message-ID: <20200129141517.GA13721@jagdpanzerIV.localdomain> > > On (20/01/28 15:58), Bartlomi

Re: KASAN: slab-out-of-bounds Write in vgacon_scroll

2020-01-29 Thread Sergey Senozhatsky
On (20/01/28 15:58), Bartlomiej Zolnierkiewicz wrote: [..] > > Help is welcomed as I'm not going to look at it in the foreseeable future > (I'm busy enough with other things). > > > (dri-devel@lists.freedesktop.org or linux-fb...@vger.kernel.org) into CC? > > Added to Cc:, thanks. Hmm. There

Re: KASAN: slab-out-of-bounds Write in vgacon_scroll

2020-01-28 Thread Bartlomiej Zolnierkiewicz
On 1/28/20 1:49 PM, Petr Mladek wrote: > On Tue 2020-01-28 18:23:46, anon anon wrote: >> Dear Linux kernel developers, >> >> I found the crash "KASAN: slab-out-of-bounds Write in vgacon_scroll" >> when running syzkaller, hope it's unknown: >> >