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CVE-2026-68309: Linux kernel Wi‑Fi driver may cause system crash

CVE-2026-68309 · published 2 months ago
Summary

The Wi‑Fi driver used in several Ubuntu kernel packages can accidentally try to use a missing piece of information, which can make the system stop responding. This affects the Linux kernels provided for standard, AWS, and Azure environments. Install the latest kernel updates from Ubuntu to apply the fix and keep your servers stable.

What to do
  • Update debian linux to version 6.12.101-1.
  • Update debian linux to version 7.1.6-1.
  • Update debian linux-6.12 to version 6.12.101-1~deb12u1.
  • Update linux kernel to version 7.1.6.
  • Update debian linux to version 6.1.187-1.
  • Update bellsoft linux-lts to version 6.1.189-r0.
  • Update bellsoft linux-lts to version 6.12.103-r0.
  • Update bellsoft linux-lts to version 6.18.43-r0.
  • Update canonical linux-aws-5.15 to version 5.15.0-1117.124~20.04.1.
  • Update canonical linux-azure-5.15 to version 5.15.0-1123.132~20.04.1.
  • Update canonical linux-azure-fde-5.15 to version 5.15.0-1122.131~20.04.1.
  • Update canonical linux-gcp-5.15 to version 5.15.0-1118.128~20.04.1.
  • Update canonical linux-hwe-5.15 to version 5.15.0-198.208~20.04.1.
  • Update canonical linux-ibm-5.15 to version 5.15.0-1111.115~20.04.1.
  • Update canonical linux-intel-iotg-5.15 to version 5.15.0-1112.118~20.04.1.
  • Update canonical linux-lowlatency-hwe-5.15 to version 5.15.0-195.205~20.04.1.
  • Update canonical linux-oracle-5.15 to version 5.15.0-1114.120~20.04.1.
  • Update canonical linux to version 5.15.0-198.208.
  • Update canonical linux-aws to version 5.15.0-1117.124.
  • Update canonical linux-azure to version 5.15.0-1123.132.
  • Update canonical linux-azure-fde to version 5.15.0-1122.131.
  • Update canonical linux-gcp to version 5.15.0-1118.128.
  • Update canonical linux-gke to version 5.15.0-1113.119.
  • Update canonical linux-gkeop to version 5.15.0-1100.108.
  • Update canonical linux-ibm to version 5.15.0-1111.115.
  • Update canonical linux-intel-iotg to version 5.15.0-1112.118.
  • Update canonical linux-kvm to version 5.15.0-1109.114.
  • Update canonical linux-lowlatency to version 5.15.0-195.205.
  • Update canonical linux-oracle to version 5.15.0-1114.120.
  • Update canonical linux-xilinx-zynqmp to version 5.15.0-1080.84.
  • Update canonical linux-intel-iot-realtime to version 5.15.0-1109.111.
  • Update canonical linux-realtime to version 5.15.0-1116.125.
  • Update canonical linux-aws-fips to version 5.15.0-1117.124+fips1.
  • Update canonical linux-azure-fips to version 5.15.0-1123.132+fips1.
  • Update canonical linux-fips to version 5.15.0-198.208+fips1.
  • Update canonical linux-gcp-fips to version 5.15.0-1118.128+fips1.
  • Update canonical linux to version 7.0.0-38.38.
  • Update canonical linux-aws to version 7.0.0-1014.14.
  • Update canonical linux-azure to version 7.0.0-1017.17.
  • Update canonical linux-azure-fde to version 7.0.0-1016.16.
  • Update canonical linux-gcp to version 7.0.0-1014.14.
  • Update canonical linux-gke to version 7.0.0-1008.9.
  • Update canonical linux-ibm to version 7.0.0-1015.15.
  • Update canonical linux-oem-7.0 to version 7.0.0-1015.15.
  • Update canonical linux-oracle to version 7.0.0-1013.13.
  • Update canonical linux-realtime to version 7.0.0-38.38.1.
  • Update canonical linux-aws-7.0 to version 7.0.0-1014.14~24.04.1.
  • Update canonical linux-azure-7.0 to version 7.0.0-1017.17~24.04.1.
  • Update canonical linux-azure-fde-7.0 to version 7.0.0-1016.16~24.04.1.
  • Update linux linux to version b09508dd7bc4a8948ea00603041a918c09788502 or later.
Affected software
Ecosystem VendorProductAffected versions
Ubuntu:16.04:LTS canonical linux-hwe-edge All versions
Ubuntu:18.04:LTS canonical linux-aws-5.0 All versions
Ubuntu:18.04:LTS canonical linux-aws-5.3 All versions
Ubuntu:18.04:LTS canonical linux-azure All versions
Ubuntu:18.04:LTS canonical linux-azure-5.3 All versions
Ubuntu:18.04:LTS canonical linux-azure-edge All versions
Ubuntu:18.04:LTS canonical linux-gcp All versions
Ubuntu:18.04:LTS canonical linux-gcp-5.3 All versions
Ubuntu:18.04:LTS canonical linux-gke-4.15 All versions
Ubuntu:18.04:LTS canonical linux-gke-5.4 All versions
Ubuntu:18.04:LTS canonical linux-gkeop-5.4 All versions
Ubuntu:18.04:LTS canonical linux-hwe All versions
Ubuntu:18.04:LTS canonical linux-oem All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.0 All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.3 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.11 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.13 All versions
Ubuntu:Pro:20.04:LTS canonical linux-aws-5.15 < 5.15.0-1117.124~20.04.1
Fix: upgrade to 5.15.0-1117.124~20.04.1
Ubuntu:20.04:LTS canonical linux-aws-5.8 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.11 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.13 All versions
Ubuntu:Pro:20.04:LTS canonical linux-azure-5.15 < 5.15.0-1123.132~20.04.1
Fix: upgrade to 5.15.0-1123.132~20.04.1
Ubuntu:20.04:LTS canonical linux-azure-5.8 All versions
Ubuntu:20.04:LTS canonical linux-azure-fde All versions
Ubuntu:Pro:20.04:LTS canonical linux-azure-fde-5.15 < 5.15.0-1122.131~20.04.1
Fix: upgrade to 5.15.0-1122.131~20.04.1
Ubuntu:20.04:LTS canonical linux-gcp-5.11 All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.13 All versions
Ubuntu:Pro:20.04:LTS canonical linux-gcp-5.15 < 5.15.0-1118.128~20.04.1
Fix: upgrade to 5.15.0-1118.128~20.04.1
Ubuntu:20.04:LTS canonical linux-gcp-5.8 All versions
Ubuntu:20.04:LTS canonical linux-gke All versions
Ubuntu:20.04:LTS canonical linux-gke-5.15 All versions
Ubuntu:20.04:LTS canonical linux-gkeop All versions
Ubuntu:20.04:LTS canonical linux-gkeop-5.15 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.11 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.13 All versions
Ubuntu:Pro:20.04:LTS canonical linux-hwe-5.15 < 5.15.0-198.208~20.04.1
Fix: upgrade to 5.15.0-198.208~20.04.1
Ubuntu:20.04:LTS canonical linux-hwe-5.8 All versions
Ubuntu:Pro:20.04:LTS canonical linux-ibm-5.15 < 5.15.0-1111.115~20.04.1
Fix: upgrade to 5.15.0-1111.115~20.04.1
Ubuntu:20.04:LTS canonical linux-intel-5.13 All versions
Ubuntu:Pro:20.04:LTS canonical linux-intel-iotg-5.15 < 5.15.0-1112.118~20.04.1
Fix: upgrade to 5.15.0-1112.118~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-lowlatency-hwe-5.15 < 5.15.0-195.205~20.04.1
Fix: upgrade to 5.15.0-195.205~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-nvidia-tegra-5.15 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.10 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.14 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.6 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.11 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.13 All versions
Ubuntu:Pro:20.04:LTS canonical linux-oracle-5.15 < 5.15.0-1114.120~20.04.1
Fix: upgrade to 5.15.0-1114.120~20.04.1
Ubuntu:20.04:LTS canonical linux-oracle-5.8 All versions
Showing 50 of 185. Show the rest
Ecosystem VendorProductAffected versions
Ubuntu:20.04:LTS canonical linux-raspi2 All versions
Ubuntu:20.04:LTS canonical linux-riscv All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.11 All versions
Ubuntu:Pro:20.04:LTS canonical linux-riscv-5.15 All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.8 All versions
Ubuntu:22.04:LTS canonical linux < 5.15.0-198.208
Fix: upgrade to 5.15.0-198.208
Ubuntu:22.04:LTS canonical linux-allwinner-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws < 5.15.0-1117.124
Fix: upgrade to 5.15.0-1117.124
Ubuntu:22.04:LTS canonical linux-aws-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.2 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.5 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.8 All versions
Ubuntu:22.04:LTS canonical linux-azure-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.2 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.5 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.8 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-6.2 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-6.8 All versions
Ubuntu:22.04:LTS canonical linux-gcp-5.19 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.2 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.5 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.8 All versions
Ubuntu:22.04:LTS canonical linux-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.8 All versions
Ubuntu:22.04:LTS canonical linux-ibm < 5.15.0-1111.115
Fix: upgrade to 5.15.0-1111.115
Ubuntu:22.04:LTS canonical linux-ibm-6.8 All versions
Ubuntu:22.04:LTS canonical linux-intel-iot-realtime All versions
Ubuntu:22.04:LTS canonical linux-intel-iotg < 5.15.0-1112.118
Fix: upgrade to 5.15.0-1112.118
Ubuntu:22.04:LTS canonical linux-kvm < 5.15.0-1109.114
Fix: upgrade to 5.15.0-1109.114
Ubuntu:22.04:LTS canonical linux-lowlatency < 5.15.0-195.205
Fix: upgrade to 5.15.0-195.205
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.8 All versions
Ubuntu:22.04:LTS canonical linux-nvidia All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.2 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.5 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.8 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-tegra All versions
Ubuntu:22.04:LTS canonical linux-nvidia-tegra-igx All versions
Ubuntu:22.04:LTS canonical linux-oem-5.17 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.0 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.1 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.5 All versions
Ubuntu:22.04:LTS canonical linux-oracle < 5.15.0-1114.120
Fix: upgrade to 5.15.0-1114.120
Ubuntu:22.04:LTS canonical linux-oracle-6.5 All versions
Ubuntu:22.04:LTS canonical linux-oracle-6.8 All versions
Ubuntu:22.04:LTS canonical linux-raspi All versions
Ubuntu:22.04:LTS canonical linux-realtime All versions
Ubuntu:22.04:LTS canonical linux-riscv-5.19 All versions
Ubuntu:22.04:LTS canonical linux-riscv-6.5 All versions
Ubuntu:22.04:LTS canonical linux-riscv-6.8 All versions
Ubuntu:22.04:LTS canonical linux-starfive-5.19 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.2 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.5 All versions
Ubuntu:22.04:LTS canonical linux-xilinx-zynqmp < 5.15.0-1080.84
Fix: upgrade to 5.15.0-1080.84
Ubuntu:Nvidia-BlueField:22.04:LTS canonical linux-bluefield All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-gcp-fips All versions
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-realtime-6.8 All versions
Ubuntu:24.04:LTS canonical linux-aws-6.14 All versions
Ubuntu:24.04:LTS canonical linux-aws-6.17 All versions
Ubuntu:24.04:LTS canonical linux-aws-7.0 < 7.0.0-1014.14~24.04.1
Fix: upgrade to 7.0.0-1014.14~24.04.1
Ubuntu:24.04:LTS canonical linux-azure-6.11 All versions
Ubuntu:24.04:LTS canonical linux-azure-6.14 All versions
Ubuntu:24.04:LTS canonical linux-azure-6.17 All versions
Ubuntu:24.04:LTS canonical linux-azure-7.0 < 7.0.0-1017.17~24.04.1
Fix: upgrade to 7.0.0-1017.17~24.04.1
Ubuntu:24.04:LTS canonical linux-azure-fde-6.14 All versions
Ubuntu:24.04:LTS canonical linux-azure-fde-6.17 All versions
Ubuntu:24.04:LTS canonical linux-azure-fde-7.0 < 7.0.0-1016.16~24.04.1
Fix: upgrade to 7.0.0-1016.16~24.04.1
Ubuntu:24.04:LTS canonical linux-azure-nvidia All versions
Ubuntu:24.04:LTS canonical linux-azure-nvidia-6.14 All versions
Ubuntu:24.04:LTS canonical linux-gcp-6.11 All versions
Ubuntu:24.04:LTS canonical linux-gcp-6.14 All versions
Ubuntu:24.04:LTS canonical linux-gcp-6.17 All versions
Ubuntu:24.04:LTS canonical linux-gcp-7.0 All versions
Ubuntu:24.04:LTS canonical linux-hwe-6.11 All versions
Ubuntu:24.04:LTS canonical linux-hwe-6.14 All versions
Ubuntu:24.04:LTS canonical linux-hwe-6.17 All versions
Ubuntu:24.04:LTS canonical linux-hwe-7.0 All versions
Ubuntu:24.04:LTS canonical linux-lowlatency-hwe-6.11 All versions
Ubuntu:24.04:LTS canonical linux-nvidia-6.11 All versions
Ubuntu:24.04:LTS canonical linux-nvidia-6.17 All versions
Ubuntu:24.04:LTS canonical linux-nvidia-7.0 All versions
Ubuntu:24.04:LTS canonical linux-nvidia-lowlatency All versions
Ubuntu:24.04:LTS canonical linux-oem-6.11 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.14 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.17 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.8 All versions
Ubuntu:24.04:LTS canonical linux-oracle-6.14 All versions
Ubuntu:24.04:LTS canonical linux-oracle-6.17 All versions
Ubuntu:24.04:LTS canonical linux-oracle-7.0 All versions
Ubuntu:24.04:LTS canonical linux-raspi-realtime All versions
Ubuntu:24.04:LTS canonical linux-riscv-6.14 All versions
Ubuntu:24.04:LTS canonical linux-riscv-6.17 All versions
Ubuntu:24.04:LTS canonical linux-riscv-7.0 All versions
Ubuntu:24.04:LTS canonical linux-xilinx All versions
Ubuntu:Pro:Realtime:24.04:LTS canonical linux-realtime-6.14 All versions
Ubuntu:Pro:Realtime:24.04:LTS canonical linux-realtime-6.17 All versions
Ubuntu:26.04:LTS canonical linux-nvidia-bos All versions
Ubuntu:26.04:LTS canonical linux-oem-7.0 < 7.0.0-1015.15
Fix: upgrade to 7.0.0-1015.15
Debian:12 debian linux < 6.1.187-1
Fix: upgrade to 6.1.187-1
Debian:13 debian linux < 6.12.101-1
Fix: upgrade to 6.12.101-1
Debian:14 debian linux < 7.1.6-1
Fix: upgrade to 7.1.6-1
Debian:12 debian linux-6.12 < 6.12.101-1~deb12u1
Fix: upgrade to 6.12.101-1~deb12u1
– linux linux < b09508dd7bc4a8948ea00603041a918c09788502
5.12
Linux linux kernel >= 6.19.0, < 7.1.6
Fix: upgrade to 7.1.6
Alpaquita:23 bellsoft linux-lts >= 6.1.182-r0, < 6.1.189-r0
Fix: upgrade to 6.1.189-r0
Alpaquita:25 bellsoft linux-lts >= 6.12.95-r0, < 6.12.103-r0
Fix: upgrade to 6.12.103-r0
Alpaquita:stream bellsoft linux-lts >= 6.18.38-r0, < 6.18.43-r0
Fix: upgrade to 6.18.43-r0
Ubuntu:22.04:LTS canonical linux-azure < 5.15.0-1123.132
Fix: upgrade to 5.15.0-1123.132
Ubuntu:22.04:LTS canonical linux-azure-fde < 5.15.0-1122.131
Fix: upgrade to 5.15.0-1122.131
Ubuntu:22.04:LTS canonical linux-gcp < 5.15.0-1118.128
Fix: upgrade to 5.15.0-1118.128
Ubuntu:22.04:LTS canonical linux-gke < 5.15.0-1113.119
Fix: upgrade to 5.15.0-1113.119
Ubuntu:22.04:LTS canonical linux-gkeop < 5.15.0-1100.108
Fix: upgrade to 5.15.0-1100.108
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-intel-iot-realtime < 5.15.0-1109.111
Fix: upgrade to 5.15.0-1109.111
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-realtime < 5.15.0-1116.125
Fix: upgrade to 5.15.0-1116.125
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-aws-fips < 5.15.0-1117.124+fips1
Fix: upgrade to 5.15.0-1117.124+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-azure-fips < 5.15.0-1123.132+fips1
Fix: upgrade to 5.15.0-1123.132+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-fips < 5.15.0-198.208+fips1
Fix: upgrade to 5.15.0-198.208+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-gcp-fips < 5.15.0-1118.128+fips1
Fix: upgrade to 5.15.0-1118.128+fips1
Ubuntu:26.04:LTS canonical linux < 7.0.0-38.38
Fix: upgrade to 7.0.0-38.38
Ubuntu:26.04:LTS canonical linux-aws < 7.0.0-1014.14
Fix: upgrade to 7.0.0-1014.14
Ubuntu:26.04:LTS canonical linux-azure < 7.0.0-1017.17
Fix: upgrade to 7.0.0-1017.17
Ubuntu:26.04:LTS canonical linux-azure-fde < 7.0.0-1016.16
Fix: upgrade to 7.0.0-1016.16
Ubuntu:26.04:LTS canonical linux-gcp < 7.0.0-1014.14
Fix: upgrade to 7.0.0-1014.14
Ubuntu:26.04:LTS canonical linux-gke < 7.0.0-1008.9
Fix: upgrade to 7.0.0-1008.9
Ubuntu:26.04:LTS canonical linux-ibm < 7.0.0-1015.15
Fix: upgrade to 7.0.0-1015.15
Ubuntu:26.04:LTS canonical linux-oracle < 7.0.0-1013.13
Fix: upgrade to 7.0.0-1013.13
Ubuntu:26.04:LTS canonical linux-realtime < 7.0.0-38.38.1
Fix: upgrade to 7.0.0-38.38.1
Original advisory text
BELL-CVE-2026-68309
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv() mt76_connac_get_he_phy_cap routine can theoretically return NULL so check cap pointer before dereferencing it.
References
Exploitation
<1% chance of attack within 30 days
Timeline
Published10 Aug 2026
Updated4 Nov 2026
First seen10 Aug 2026
Track software like this
Free during beta