Public bug reported: Please add the following upstream commit (and its prerequisites) for SR- IOV on Azure:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0719e72ccb801829a3d735d187ca8417f0930459 author stephen hemminger <[email protected]> 2017-01-11 17:16:32 (GMT) committer David S. Miller <[email protected]> 2017-01-11 21:13:53 (GMT) commit 0719e72ccb801829a3d735d187ca8417f0930459 (patch) tree a4f718fefcb15433fa59f6d4add44ae220edb806 parent 4ecb1d83f6abe8d49163427f4d431ebe98f8bd5f (diff) netvsc: add rcu_read locking to netvsc callback The receive callback (in tasklet context) is using RCU to get reference to associated VF network device but this is not safe. RCU read lock needs to be held. Found by running with full lockdep debugging enabled. Fixes: f207c10d9823 ("hv_netvsc: use RCU to protect vf_netdev") Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]> ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657540 Title: [Hyper-V] netvsc: add rcu_read locked to netvsc callback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657540/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
