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OpenAdvisories
Unscored CVE-2022-50179 EUVD-2022-55444GHSA-92cx-cg65-38vh

ath9k: fix use-after-free in ath9k_hif_usb_rx_cb

Published Jun 18, 2025 · Updated Nov 5, 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-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lts-xenial Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 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-6.5 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

ath9k: fix use-after-free in ath9k_hif_usb_rx_cb

Syzbot reported use-after-free Read in ath9k_hif_usb_rx_cb() [0]. The
problem was in incorrect htc_handle->drv_priv initialization.

Probable call trace which can trigger use-after-free:

ath9k_htc_probe_device()
/* htc_handle->drv_priv = priv; */
ath9k_htc_wait_for_target() <--- Failed
ieee80211_free_hw() <--- priv pointer is freed

<IRQ>
...
ath9k_hif_usb_rx_cb()
ath9k_hif_usb_rx_stream()
RX_STAT_INC() <--- htc_handle->drv_priv access

In order to not add fancy protection for drv_priv we can move
htc_handle->drv_priv initialization at the end of the
ath9k_htc_probe_device() and add helper macro to make
all *_STAT_* macros NULL safe, since syzbot has reported related NULL
deref in that macros [1]

Affected products

VendorProductAffectedFixed
Linux Linux 2.6.35 4.14.291

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 6.0.2-1 —
Debian 13 linux 6.0.2-1 —
Debian 12 linux 6.0.2-1 —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-riscv +2 No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-43.46 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1017.21 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1017.20 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1016.21 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1014.17 —
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1002.4 —
Ubuntu 22.04 LTS linux-ibm 5.15.0-1012.14 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1013.17 —
Ubuntu 22.04 LTS linux-kvm 5.15.0-1016.19 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1016.20 —
Ubuntu 22.04 LTS linux-raspi 5.15.0-1013.15 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-124.140 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1083.90 —
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1017.21~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1089.94 —
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1017.20~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1044.49 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1086.94 —
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1016.21~20.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-43.46~20.04.1 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1031.35 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1015.20~20.04.2 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1004.6 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1073.78 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1081.89 —
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1016.20~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1068.78 —
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1017.19~20.04.1 —
Ubuntu 18.04 LTS linux 4.15.0-191.202 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1139.150 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1083.90~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1149.164 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1089.94~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1134.150 —
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1086.94~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-124.140~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1031.35~18.04.1 —
Ubuntu 18.04 LTS linux-kvm 4.15.0-1125.130 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1104.115 —
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1081.89~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1068.78~18.04.1 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1019.19 —
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1083.90+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1089.94+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1059.67 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1086.94+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2078.83 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2059.65 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1096.107 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2043.48 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1079.86 —
Ubuntu Pro 16.04 LTS linux 4.4.0-229.263 —
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1145.160 —
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1139.150~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1149.164~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1134.150~16.04.2 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-191.202~16.04.1 —
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1110.120 —
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1104.115~16.04.1 —
Ubuntu Pro 14.04 LTS linux No fix yet —
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1109.115 —
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1149.164~14.04.1 —
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-229.263~14.04.1 —

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
RHEL 9 perf +29 5.14.0-162.6.1.el9_1 RHSA-2022:8267
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Rhev Hypervisor 4 perf +2 4.18.0-372.87.1.el8_6 RHSA-2024:0412
RHEL 8.6 EUS perf +26 4.18.0-372.87.1.el8_6 RHSA-2024:0412

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.113.1 SUSE-SU-2025:02264-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.113.1.150500.6.53.1 SUSE-SU-2025:02264-1
SLES 15 SP4 kernel-64kb +3 5.14.21-150400.24.170.2 SUSE-SU-2025:02537-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.170.2.150400.24.86.2 SUSE-SU-2025:02537-1
SLES 15 SP4 kernel-docs +2 5.14.21-150400.24.170.1 SUSE-SU-2025:02537-1
SLES 15 SP3 kernel-64kb +6 5.3.18-150300.59.211.1 SUSE-SU-2025:02308-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.211.1.150300.18.126.1 SUSE-SU-2025:02308-1
SLES 15 SP3 kernel-obs-build 5.3.18-150300.59.212.1 SUSE-SU-2025:02308-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.266.1 SUSE-SU-2025:02334-1
Show 16 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.113.1.150500.6.53.1 SUSE-SU-2025:02264-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.113.1 SUSE-SU-2025:02264-1
SLES for SAP 15 SP4 kernel-default +1 5.14.21-150400.24.170.2 SUSE-SU-2025:02537-1
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.170.2.150400.24.86.2 SUSE-SU-2025:02537-1
SLES for SAP 15 SP4 kernel-docs +2 5.14.21-150400.24.170.1 SUSE-SU-2025:02537-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.211.1.150300.18.126.1 SUSE-SU-2025:02308-1
SLES for SAP 15 SP3 kernel-docs +4 5.3.18-150300.59.211.1 SUSE-SU-2025:02308-1
SLES for SAP 15 SP3 kernel-obs-build 5.3.18-150300.59.212.1 SUSE-SU-2025:02308-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.113.1.150500.6.53.1 SUSE-SU-2025:02264-1
SLE Micro 5.5 kernel-rt 5.14.21-150500.13.100.2 SUSE-SU-2025:02321-1
SLE Micro 5.5 kernel-source +1 5.14.21-150500.55.113.1 SUSE-SU-2025:02264-1
SLE Micro 5.5 kernel-source-rt 5.14.21-150500.13.100.1 SUSE-SU-2025:02321-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.170.2 SUSE-SU-2025:02537-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.170.2.150400.24.86.2 SUSE-SU-2025:02537-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.124.1 SUSE-SU-2025:02322-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.170.2 SUSE-SU-2025:02537-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.170.2.150400.24.86.2 SUSE-SU-2025:02537-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.124.1 SUSE-SU-2025:02322-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.211.1 SUSE-SU-2025:02308-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.211.1.150300.18.126.1 SUSE-SU-2025:02308-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.214.1 SUSE-SU-2025:02320-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.211.1 SUSE-SU-2025:02308-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.211.1.150300.18.126.1 SUSE-SU-2025:02308-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.214.1 SUSE-SU-2025:02320-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.113.1 SUSE-SU-2025:02264-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_28 1-150500.11.3.1 SUSE-SU-2025:02264-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.211.1 SUSE-SU-2025:02308-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_59 1-150300.7.3.1 SUSE-SU-2025:02308-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.266.1 SUSE-SU-2025:02334-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_70 1-8.5.1 SUSE-SU-2025:02334-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.113.1 SUSE-SU-2025:02264-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.113.1.150500.6.53.1 SUSE-SU-2025:02264-1
SLE HPC 15 SP4 kernel-64kb +2 5.14.21-150400.24.170.2 SUSE-SU-2025:02537-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.170.2.150400.24.86.2 SUSE-SU-2025:02537-1
SLE HPC 15 SP4 kernel-docs +2 5.14.21-150400.24.170.1 SUSE-SU-2025:02537-1
SUSE Manager Server 4.3 kernel-default +1 5.14.21-150400.24.170.2 SUSE-SU-2025:02537-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.170.2.150400.24.86.2 SUSE-SU-2025:02537-1
SUSE Manager Server 4.3 kernel-syms +1 5.14.21-150400.24.170.1 SUSE-SU-2025:02537-1
SUSE Manager Proxy 4.3 kernel-default 5.14.21-150400.24.170.2 SUSE-SU-2025:02537-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.170.2.150400.24.86.2 SUSE-SU-2025:02537-1
SUSE Manager Proxy 4.3 kernel-syms +1 5.14.21-150400.24.170.1 SUSE-SU-2025:02537-1
SUSE Enterprise Storage 7.1 kernel-64kb +5 5.3.18-150300.59.211.1 SUSE-SU-2025:02308-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.211.1.150300.18.126.1 SUSE-SU-2025:02308-1
SUSE Enterprise Storage 7.1 kernel-obs-build 5.3.18-150300.59.212.1 SUSE-SU-2025:02308-1

Advisories 10

References