** Changed in: linux-azure (Ubuntu Disco)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1855461
Title:
[linux-azure] SAUCE patch to "Fix skb protocol value in
tpacket_fill_skb()"
Status in linux-azure package in Ubuntu:
New
Status in linux-azure source package in Xenial:
Fix Released
Status in linux-azure source package in Disco:
Fix Committed
Bug description:
The actual fix for this issue would be to backport two related patches
that were accepted upstream in Feb/March 2019. But doing a full
backport is complicated because of dependencies on other new code.
The two upstream commits are:
75c65772c3d1 ("net/packet: Ask driver for protocol if not provided by user")
18bed89107a4 ("af_packet: fix the tx skb protocol in raw sockets with
ETH_P_ALL")
Instead of a full backport of these patches, a SAUCE patch was
generated to avoid the complicated dependencies. The SAUCE patch is
attached to the bug.
Microsoft and the affected customer feel this patch is pretty small
and safe. Microsoft and the end customer have tested the backport and
confirmed that it solves the problem.
Backports are needed for both the 4.15.0 and the 5.0 azure kernels
that are used in Ubuntu 16.04 and Ubuntu 18.04 images in the Azure
Marketplace. The customer is using the 4.15 kernel from Ubuntu 16.04,
so getting this fix included there is fairly high priority, though not
“critical/emergency” level. Getting the fix included in the 5.0
kernel in Ubuntu 18.04 in the Azure Marketplace is low priority.
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