On Wed, Jun 23, 2021 at 6:28 PM syzbot <syzbot+c2f6f09fe907a838effb@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > > 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 > > Can't dup bug to a bug in different reporting (upstream->internal).Please dup syzbot bugs only onto syzbot bugs for the same kernel/reporting. I think we can say: #syz dup: WARNING in __vmalloc_node_range https://syzkaller.appspot.com/bug?id=3c558412597cc402fd7fbb250ca30d04d46c8c60 as that was the original bug report.
