Re: [PATCH] netlink: make sure nladdr has correct size in netlink_connect()

2018-03-25 Thread David Miller
From: Alexander Potapenko Date: Fri, 23 Mar 2018 13:49:02 +0100 > KMSAN reports use of uninitialized memory in the case when |alen| is > smaller than sizeof(struct sockaddr_nl), and therefore |nladdr| isn't > fully copied from the userspace. > > Signed-off-by: Alexander Potapenko > Fixes: 1da17

Re: [PATCH] netlink: make sure nladdr has correct size in netlink_connect()

2018-03-23 Thread Eric Dumazet
On 03/23/2018 05:49 AM, Alexander Potapenko wrote: > KMSAN reports use of uninitialized memory in the case when |alen| is > smaller than sizeof(struct sockaddr_nl), and therefore |nladdr| isn't > fully copied from the userspace. > > Signed-off-by: Alexander Potapenko > Fixes: 1da177e4c3f41524 (

[PATCH] netlink: make sure nladdr has correct size in netlink_connect()

2018-03-23 Thread Alexander Potapenko
KMSAN reports use of uninitialized memory in the case when |alen| is smaller than sizeof(struct sockaddr_nl), and therefore |nladdr| isn't fully copied from the userspace. Signed-off-by: Alexander Potapenko Fixes: 1da177e4c3f41524 ("Linux-2.6.12-rc2") --- v2: fixed a typo spotted by Eric Dumazet

Re: [PATCH] netlink: make sure nladdr has correct size in netlink_connect()

2018-03-14 Thread Eric Dumazet
On Wed, Mar 14, 2018 at 7:16 AM, Alexander Potapenko wrote: > > > > On Wed, Mar 14, 2018 at 3:11 PM Eric Dumazet wrote: >> >> On Wed, Mar 14, 2018 at 7:03 AM, Alexander Potapenko >> wrote: >> > KMSAN reports use of uninitialized memory in the case when |alen| is >> > smaller than sizeof(struct n

Re: [PATCH] netlink: make sure nladdr has correct size in netlink_connect()

2018-03-14 Thread Eric Dumazet
On Wed, Mar 14, 2018 at 7:03 AM, Alexander Potapenko wrote: > KMSAN reports use of uninitialized memory in the case when |alen| is > smaller than sizeof(struct netlink_sock), and therefore |nladdr| isn't > fully copied from the userspace. > > Signed-off-by: Alexander Potapenko > Fixes: 1da177e4c3

[PATCH] netlink: make sure nladdr has correct size in netlink_connect()

2018-03-14 Thread Alexander Potapenko
KMSAN reports use of uninitialized memory in the case when |alen| is smaller than sizeof(struct netlink_sock), and therefore |nladdr| isn't fully copied from the userspace. Signed-off-by: Alexander Potapenko Fixes: 1da177e4c3f41524 ("Linux-2.6.12-rc2") --- net/netlink/af_netlink.c | 3 +++ 1 fil