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CVE-2026-68215: Linux kernel may leak radio device reference on failure

CVE-2026-68215 · published 2 months ago
Summary

The Linux kernel's radio driver can leave a hidden reference when it fails to start, which may cause system instability or crashes. This issue affects Debian and Canonical Linux distributions, including recent kernel releases. Updating to the latest kernel version that includes the fix will resolve the problem.

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-nvidia to version 5.15.0-1112.113.
  • 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 canonical linux-gcp-7.0 to version 7.0.0-1014.14~24.04.1.
  • Update canonical linux-hwe-7.0 to version 7.0.0-38.38~24.04.4.
  • Update canonical linux-oracle-7.0 to version 7.0.0-1013.13~24.04.1.
  • Update linux linux to version 4ca9c9f12b1bc341a0a3bbbd2090fd182db53771 or later.
Affected software
Ecosystem VendorProductAffected versions
Debian:11 debian linux All versions
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
Ubuntu:Pro:14.04:LTS canonical linux All versions
Ubuntu:Pro:14.04:LTS canonical linux-aws All versions
Ubuntu:Pro:14.04:LTS canonical linux-azure All versions
Ubuntu:Pro:14.04:LTS canonical linux-lts-xenial All versions
Ubuntu:Pro:16.04:LTS canonical linux-aws-hwe All versions
Ubuntu:Pro:16.04:LTS canonical linux-gcp All versions
Ubuntu:Pro:16.04:LTS canonical linux-hwe All versions
Ubuntu:16.04:LTS canonical linux-hwe-edge All versions
Ubuntu:Pro:16.04:LTS canonical linux-kvm All versions
Ubuntu:Pro:16.04:LTS canonical linux-oracle All versions
Ubuntu:Pro:FIPS:16.04:LTS canonical linux-fips 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:Pro:18.04:LTS canonical linux-aws-5.4 All versions
Ubuntu:Pro:18.04:LTS canonical linux-azure-4.15 All versions
Ubuntu:18.04:LTS canonical linux-azure-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-azure-5.4 All versions
Ubuntu:18.04:LTS canonical linux-azure-edge All versions
Ubuntu:Pro:18.04:LTS canonical linux-gcp-4.15 All versions
Ubuntu:18.04:LTS canonical linux-gcp-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-gcp-5.4 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:Pro:18.04:LTS canonical linux-hwe-5.4 All versions
Ubuntu:Pro:18.04:LTS canonical linux-ibm-5.4 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:Pro:18.04:LTS canonical linux-oracle-5.4 All versions
Ubuntu:Pro:18.04:LTS canonical linux-raspi-5.4 All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-gcp-fips 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:Pro:20.04:LTS canonical linux-bluefield All versions
Showing 50 of 204. Show the rest
Ecosystem VendorProductAffected versions
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 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-iot All versions
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
Ubuntu:Pro:20.04:LTS canonical linux-raspi All 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:Pro:20.04:LTS canonical linux-xilinx-zynqmp All versions
Ubuntu:22.04:LTS canonical linux-allwinner-5.19 All versions
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-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-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 < 5.15.0-1112.113
Fix: upgrade to 5.15.0-1112.113
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-6.5 All versions
Ubuntu:22.04:LTS canonical linux-oracle-6.8 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: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 < 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-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 < 7.0.0-38.38~24.04.4
Fix: upgrade to 7.0.0-38.38~24.04.4
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 < 7.0.0-1013.13~24.04.1
Fix: upgrade to 7.0.0-1013.13~24.04.1
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
– linux linux < 4ca9c9f12b1bc341a0a3bbbd2090fd182db53771
3.10
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 < 5.15.0-198.208
Fix: upgrade to 5.15.0-198.208
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-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: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-kvm < 5.15.0-1109.114
Fix: upgrade to 5.15.0-1109.114
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-xilinx-zynqmp < 5.15.0-1080.84
Fix: upgrade to 5.15.0-1080.84
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-2026-68215
In the Linux kernel, the following vulnerability has been resolved: media: radio-si476x: Unregister v4l2_device on probe failure si476x_radio_probe() registers radio->v4l2dev before allocating the V4L2 controls and before registering the video device. If any of those later steps fails, probe returns through the exit label after freeing only the control handler. A failed probe does not call si476x_radio_remove(), so the v4l2_device_unregister() there is not reached. This leaves the parent device reference taken by v4l2_device_register() behind on the error path. Unregister the V4L2 device in the probe error path after freeing the controls.
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