🛡️ UBUNTU-CVE-2022-49776
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: macvlan: enforce a consistent minimal mtu macvlan should enforce a minimal mtu of 68, even at link creation. This patch avoids the current behavior (which could lead to crashes in ipv6 stack if the link is brought up) $ ip link add macvlan1 link eno1 mtu 8 type macvlan # This should fail ! $ ip link sh dev macvlan1 5: macvlan1@eno1: mtu 8 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 02:47:6c:24:74:82 brd ff:ff:ff:ff:ff:ff $ ip link set macvlan1 mtu 67 Error: mtu less than device minimum. $ ip link set macvlan1 mtu 68 $ ip link set macvlan1 mtu 8 Error: mtu less than device minimum.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-05-01
Updated 2026-06-15
Modified 2026-06-08
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 5.15.0-67.74
linux-allwinner-5.19
linux-aws 5.15.0-1031.35
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15 5.15.0-1031.35~20.04.1
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4 5.4.0-1097.105~18.04.1
linux-aws-5.8
linux-aws-6.2
linux-aws-6.5
linux-aws-fips
linux-aws-hwe 4.15.0-1151.164~16.04.1
linux-azure 5.15.0-1034.41
linux-azure-4.15 4.15.0-1162.177
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 5.15.0-1034.41~20.04.1
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4 5.4.0-1104.110~18.04.1
linux-azure-5.8
linux-azure-6.2
linux-azure-6.5
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips
linux-bluefield
linux-fips
linux-gcp 5.15.0-1030.37
linux-gcp-4.15 4.15.0-1146.162
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15 5.15.0-1030.37~20.04.1
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4 5.4.0-1101.110~18.04.1
linux-gcp-5.8
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-fips
linux-gke 5.15.0-1028.33
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 5.15.0-1016.21
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 5.15.0-67.74~20.04.1
linux-hwe-5.19
linux-hwe-5.4 5.4.0-144.161~18.04.1
linux-hwe-5.8
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-edge
linux-ibm 5.15.0-1026.29
linux-ibm-5.4 5.4.0-1045.50~18.04.1
linux-intel-5.13
linux-intel-iot-realtime 5.15.0-1022.27
linux-intel-iotg 5.15.0-1026.31
linux-intel-iotg-5.15 5.15.0-1026.31~20.04.1
linux-iot 5.4.0-1013.15
linux-kvm 5.15.0-1029.34
linux-lowlatency 5.15.0-67.74
linux-lowlatency-hwe-5.15 5.15.0-67.74~20.04.1
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-nvidia 5.15.0-1023.23
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-tegra-5.15 5.15.0-1014.14~20.04.1
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.5
linux-oracle 5.15.0-1030.36
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15 5.15.0-1030.36~20.04.1
linux-oracle-5.3
linux-oracle-5.4 5.4.0-1094.103~18.04.1
linux-oracle-5.8
linux-oracle-6.5
linux-raspi 5.15.0-1025.27
linux-raspi-5.4 5.4.0-1081.92~18.04.1
linux-raspi-realtime
linux-raspi2
linux-realtime
linux-riscv
linux-riscv-5.11
linux-riscv-5.15 5.15.0-1030.34~20.04.1
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx-zynqmp 5.4.0-1022.26

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