On Wed, 23 Jun 2021 19:19:28 +0300 Pavel Skripkin <paskripkin@xxxxxxxxx> wrote: > On Wed, 23 Jun 2021 02:15:23 -0700 > syzbot <syzbot+c2f6f09fe907a838effb@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: 13311e74 Linux 5.13-rc7 > > git tree: upstream > > console output: > > https://syzkaller.appspot.com/x/log.txt?x=15d01e58300000 kernel > > config: https://syzkaller.appspot.com/x/.config?x=42ecca11b759d96c > > dashboard link: > > https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb syz > > repro: > > https://syzkaller.appspot.com/x/repro.syz?x=14bb89e8300000 C > > reproducer: > > https://syzkaller.appspot.com/x/repro.c?x=17cc51b8300000 > > > > The issue was bisected to: > > > > commit f9006acc8dfe59e25aa75729728ac57a8d84fc32 > > Author: Florian Westphal <fw@xxxxxxxxx> > > Date: Wed Apr 21 07:51:08 2021 +0000 > > > > netfilter: arp_tables: pass table pointer via nf_hook_ops > > > > bisection log: > > https://syzkaller.appspot.com/x/bisect.txt?x=13b88400300000 final > > oops: > > https://syzkaller.appspot.com/x/report.txt?x=10788400300000 console > > output: https://syzkaller.appspot.com/x/log.txt?x=17b88400300000 > > > > This one is similar to previous zero-size vmalloc, I guess :) > > #syz test > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > master > > Hah, I didn't notice that this one is already fixed by me. But the patch is in the media tree, it's not upstreamed yet: https://git.linuxtv.org/media_tree.git/commit/?id=c680ed46e418e9c785d76cf44eb33bfd1e8cf3f6 So, #syz dup: WARNING: zero-size vmalloc in dvb_dmx_init With regards, Pavel Skripkin
