Re: [PATCH] igmp: fix unsafe RCU usage in igmpv3_src_addr

2018-02-02 Thread Stephen Hemminger
On Fri, 02 Feb 2018 14:18:45 -0800 Eric Dumazet wrote: > On Fri, 2018-02-02 at 13:30 -0800, Stephen Hemminger wrote: > > From: Stephen Hemminger > > > > New igmpv3_get_src_addr would sometimes be called in receive path > > without holding RCU lock. > > Strange, this should have been fixed al

Re: [PATCH] igmp: fix unsafe RCU usage in igmpv3_src_addr

2018-02-02 Thread Eric Dumazet
On Fri, 2018-02-02 at 13:30 -0800, Stephen Hemminger wrote: > From: Stephen Hemminger > > New igmpv3_get_src_addr would sometimes be called in receive path > without holding RCU lock. Strange, this should have been fixed already ? https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/co

[PATCH] igmp: fix unsafe RCU usage in igmpv3_src_addr

2018-02-02 Thread Stephen Hemminger
From: Stephen Hemminger New igmpv3_get_src_addr would sometimes be called in receive path without holding RCU lock. [ 378.847402] = [ 378.847403] WARNING: suspicious RCU usage [ 378.847405] 4.15.0-net-next+ #1 Not tainted [ 378.847407]