This bug was fixed in the package linux-azure - 4.18.0-1023.24
---------------
linux-azure (4.18.0-1023.24) cosmic; urgency=medium
* linux-azure: 4.18.0-1023.24 -proposed tracker (LP: #1833946)
* [linux-azure] XDP generic fixes (LP: #1831254)
- netvsc: unshare skb in VF rx handler
- net: convert rps_needed and rfs_needed to new static
- net: core: support XDP generic on stacked devices.
* Enable eBPF JIT in the linux-azure kernels (LP: #1827916)
- [Config] linux-azure: CONFIG_MLX{4,5}_INFINIBAND=m
* Azure: Backport vIOMMU driver (increase vCPU limits) (LP: #1826447)
- PCI: hv: Replace hv_vp_set with hv_vpset
- PCI: hv: Refactor hv_irq_unmask() to use cpumask_to_vpset()
- x86/Hyper-V: Set x2apic destination mode to physical when x2apic is
available
- iommu/hyper-v: Add Hyper-V stub IOMMU driver
- [Config] linux-azure: CONFIG_HYPERV_IOMMU=y
* [linux-azure] Please Include Mainline Commit ebaf39e6032f in the 16.04 and
18.04 linux-azure kernels (LP: #1830266)
- ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes
* [Packaging] Improve config annotations check on custom kernels
(LP: #1820075)
- [Config] linux-azure: Include custom annotations files
[ Ubuntu: 4.18.0-25.26 ]
* linux: 4.18.0-25.26 -proposed tracker (LP: #1833952)
* CVE-2019-11479
- SAUCE: tcp: add tcp_min_snd_mss sysctl
- SAUCE: tcp: enforce tcp_min_snd_mss in tcp_mtu_probing()
* Remote denial of service (resource exhaustion) caused by TCP SACK scoreboard
manipulation (LP: #1831638) // CVE-2019-11478
- tcp: refine memory limit test in tcp_fragment()
[ Ubuntu: 4.18.0-24.25 ]
* CVE-2019-12817
- SAUCE: powerpc/mm/64s/hash: Reallocate context ids on fork
-- Stefan Bader <stefan.ba...@canonical.com> Tue, 25 Jun 2019 12:46:06
+0200
** Changed in: linux-azure (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1827916
Title:
Enable eBPF JIT in the linux-azure kernels
Status in linux-azure package in Ubuntu:
Fix Released
Status in linux-azure source package in Xenial:
Fix Released
Status in linux-azure source package in Cosmic:
Fix Released
Status in linux-azure source package in Disco:
Fix Released
Bug description:
eBPF is available as of kernel version 4.15, which is used on AKS nodes.
Enabling JIT eBPF (built-in kernel feature) will speed-up execution of eBPF
aware tools.
eBPF JIT is controlled by the file /proc/sys/net/core/bpf_jit_enable.
More details for eBPF JIT -
https://www.kernel.org/doc/Documentation/sysctl/net.txt
The file /proc/sys/net/core/bpf_jit_enable is not present on AKS nodes.
Also, to support eBPF in AKS, we are requesting to switch the mlx* and
ib* drivers to loadable modules instead of static.
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