Re: [stable 3.18 backport v2] netlink: Trim skb to alloc size to avoid MSG_TRUNC

2019-02-25 Thread Greg Kroah-Hartman
On Fri, Feb 22, 2019 at 08:03:28AM -0800, Mark Salyzyn wrote: > From: "Arad, Ronen" > > Direct this upstream db65a3aaf29ecce2e34271d52e8d2336b97bd9fe sha to > stable 3.18. This patch addresses a race condition where a call to > > nlk->max_recvmsg_len = max(nlk->max_recvmsg_len, len); > nlk->m

[stable 3.18 backport v2] netlink: Trim skb to alloc size to avoid MSG_TRUNC

2019-02-22 Thread Mark Salyzyn
From: "Arad, Ronen" Direct this upstream db65a3aaf29ecce2e34271d52e8d2336b97bd9fe sha to stable 3.18. This patch addresses a race condition where a call to nlk->max_recvmsg_len = max(nlk->max_recvmsg_len, len); nlk->max_recvmsg_len = min_t(size_t, nlk->max_recvmsg_len, one thread in-between