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Unscored CVE-2024-50005 EUVD-2024-45223GHSA-7hrq-p9p5-9fjx

mac802154: Fix potential RCU dereference issue in mac802154_scan_worker

Published Oct 21, 2024 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-6.8 Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-6.8 Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-lowlatency Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-oracle-6.8 Package: linux-raspi Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

mac802154: Fix potential RCU dereference issue in mac802154_scan_worker

In the `mac802154_scan_worker` function, the `scan_req->type` field was
accessed after the RCU read-side critical section was unlocked. According
to RCU usage rules, this is illegal and can lead to unpredictable
behavior, such as accessing memory that has been updated or causing
use-after-free issues.

This possible bug was identified using a static analysis tool developed
by myself, specifically designed to detect RCU-related issues.

To address this, the `scan_req->type` value is now stored in a local
variable `scan_req_type` while still within the RCU read-side critical
section. The `scan_req_type` is then used after the RCU lock is released,
ensuring that the type value is safely accessed without violating RCU
rules.

Affected products

VendorProductAffectedFixed
Linux Linux 6.5 6.6.55

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 linux 6.11.4-1 —
Debian 13 linux 6.11.4-1 —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux 6.8.0-54.56 USN-7301-1
Ubuntu 24.04 LTS linux-aws 6.8.0-1023.25 USN-7311-1
Ubuntu 24.04 LTS linux-azure 6.8.0-1025.30 USN-7384-1
Ubuntu 24.04 LTS linux-gcp 6.8.0-1024.26 USN-7304-1
Ubuntu 24.04 LTS linux-gke +1 6.8.0-1019.23 USN-7304-1, USN-7303-3
Ubuntu 24.04 LTS linux-gkeop 6.8.0-1006.8 USN-7304-1
Ubuntu 24.04 LTS linux-ibm 6.8.0-1022.22 USN-7385-1
Ubuntu 24.04 LTS linux-lowlatency 6.8.0-54.56.1 USN-7301-1
Ubuntu 24.04 LTS linux-nvidia 6.8.0-1022.25 USN-7303-1
Ubuntu 24.04 LTS linux-nvidia-lowlatency 6.8.0-1022.25.2 USN-7303-1
Ubuntu 24.04 LTS linux-oem-6.11 6.11.0-1015.15 USN-7310-1
Ubuntu 24.04 LTS linux-oem-6.8 6.8.0-1024.24 USN-7386-1
Ubuntu 24.04 LTS linux-oracle 6.8.0-1020.21 USN-7303-2
Ubuntu 24.04 LTS linux-realtime No fix yet —
Ubuntu 24.04 LTS linux-riscv 6.8.0-53.55.1 —
Ubuntu 22.04 LTS linux-aws-6.8 6.8.0-1023.25~22.04.1 USN-7311-1
Ubuntu 22.04 LTS linux-azure-6.8 6.8.0-1025.30~22.04.1 USN-7384-2
Ubuntu 22.04 LTS linux-gcp-6.8 6.8.0-1024.26~22.04.1 USN-7303-3
Ubuntu 22.04 LTS linux-hwe-6.8 6.8.0-57.59~22.04.1 USN-7403-1
Ubuntu 22.04 LTS linux-lowlatency-hwe-6.8 6.8.0-54.56.1~22.04.1 USN-7301-1
Ubuntu 22.04 LTS linux-nvidia-6.8 6.8.0-1022.25~22.04.2 USN-7303-1
Ubuntu 22.04 LTS linux-oracle-6.8 6.8.0-1020.21~22.04.1 USN-7303-2
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 22.04 LTS linux-riscv-6.8 6.8.0-53.55.1~22.04.1 —
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 18.04 LTS linux-gcp +13 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2018.19 —
Ubuntu Pro Realtime 24.04 LTS linux-realtime 6.8.1-1016.17 —

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed kernel-source 6.11.8-1.1 openSUSE-SU-2024:14500-1
openSUSE Tumbleweed kernel-source-longterm 6.12.11-1.1 openSUSE-SU-2025:14705-1

Advisories 15

References