Re: [PATCH net v2] KEYS: DNS: fix parsing multiple options

2018-07-16 Thread David Miller
From: Eric Biggers Date: Wed, 11 Jul 2018 10:46:29 -0700 > From: Eric Biggers > > My recent fix for dns_resolver_preparse() printing very long strings was > incomplete, as shown by syzbot which still managed to hit the > WARN_ONCE() in set_precision() by adding a crafted "dns_resolver" key: >

[PATCH net v2] KEYS: DNS: fix parsing multiple options

2018-07-11 Thread Eric Biggers
From: Eric Biggers My recent fix for dns_resolver_preparse() printing very long strings was incomplete, as shown by syzbot which still managed to hit the WARN_ONCE() in set_precision() by adding a crafted "dns_resolver" key: precision 50001 too large WARNING: CPU: 7 PID: 864 at