Re: [PATCH net] net: ip6_gre: set dev->hard_header_len when using header_ops

2020-12-02 Thread Jakub Kicinski
On Mon, 30 Nov 2020 17:19:11 +0100 Antoine Tenart wrote: > syzkaller managed to crash the kernel using an NBMA ip6gre interface. I > could reproduce it creating an NBMA ip6gre interface and forwarding > traffic to it: > > skbuff: skb_under_panic: text:8250e927 len:148 put:44 > head:

[PATCH net] net: ip6_gre: set dev->hard_header_len when using header_ops

2020-11-30 Thread Antoine Tenart
syzkaller managed to crash the kernel using an NBMA ip6gre interface. I could reproduce it creating an NBMA ip6gre interface and forwarding traffic to it: skbuff: skb_under_panic: text:8250e927 len:148 put:44 head:8c03c7a33 [ cut here ] kernel BUG at net/