https://lists.ubuntu.com/archives/kernel-team/2017-January/081900.html
** Changed in: linux (Ubuntu Xenial)
Status: Triaged => In Progress
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => Tim Gardner (timg-tpi)
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https://bugs.launchpad.net/bugs/1657540
Title:
[Hyper-V] netvsc: add rcu_read locked to netvsc callback
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Xenial:
In Progress
Status in linux source package in Yakkety:
In Progress
Status in linux source package in Zesty:
Fix Committed
Bug description:
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 <step...@networkplumber.org>
2017-01-11 17:16:32 (GMT)
committer
David S. Miller <da...@davemloft.net>
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 <sthem...@microsoft.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
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