Messages in this thread | | | Date | Fri, 24 Jan 2020 12:11:44 +0300 | From | Dan Carpenter <> | Subject | Re: KASAN: slab-out-of-bounds Read in bitmap_port_destroy |
| |
On Fri, Jan 24, 2020 at 04:55:21PM +0800, Hillf Danton wrote: > Ensure four bytes and ask slab to do the rest. > > --- a/include/linux/netfilter/ipset/ip_set.h > +++ b/include/linux/netfilter/ipset/ip_set.h > @@ -430,7 +430,7 @@ ip6addrptr(const struct sk_buff *skb, bo > static inline int > bitmap_bytes(u32 a, u32 b) > { > - return 4 * ((((b - a + 8) / 8) + 3) / 4); > + return 4 + (b - a) / 8; > } >
Thanks, but this was already fixed by:
https://lore.kernel.org/netfilter-devel/alpine.DEB.2.20.2001192203200.18095@blackhole.kfki.hu/
regards, dan carpenter
| |