Re: [syzbot] WARNING: kmalloc bug in hash_ipport_create

syzbot
2021-09-09T10:32:15Z

syzbot has bisected this issue to:

commit 7661809d493b426e979f39ab512e3adf41fbcc69
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed Jul 14 16:45:49 2021 +0000

mm: don't allow oversized kvmalloc() calls

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15bb0a93300000
start commit: 626bf91a292e Merge tag 'net-5.15-rc1' of git://git.kernel...
git tree: net-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=17bb0a93300000
console output: https://syzkaller.appspot.com/x/log.txt?x=13bb0a93300000
kernel config: https://syzkaller.appspot.com/x/.config?x=16e23f04679ec35e
dashboard link: https://syzkaller.appspot.com/bug?extid=a568bbab323b96631e61
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=178b5d0d300000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16fad1dd300000

Reported-by: syzbot+a568bbab323b96631e61@syzkaller.appspotmail.com
Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection