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Unscored CVE-2022-50678 EUVD-2022-55727GHSA-4429-w779-rp6q

wifi: brcmfmac: fix invalid address access when enabling SCAN log level

Published Dec 9, 2025 · 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-5.15 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-6.11 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-6.11 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-6.11 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-6.11 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-nvidia Package: linux-nvidia-6.11 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-6.11 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-5.15 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-6.14 Package: linux-riscv-6.5 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

wifi: brcmfmac: fix invalid address access when enabling SCAN log level

The variable i is changed when setting random MAC address and causes
invalid address access when printing the value of pi->reqs[i]->reqid.

We replace reqs index with ri to fix the issue.

[ 136.726473] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000
[ 136.737365] Mem abort info:
[ 136.740172] ESR = 0x96000004
[ 136.743359] Exception class = DABT (current EL), IL = 32 bits
[ 136.749294] SET = 0, FnV = 0
[ 136.752481] EA = 0, S1PTW = 0
[ 136.755635] Data abort info:
[ 136.758514] ISV = 0, ISS = 0x00000004
[ 136.762487] CM = 0, WnR = 0
[ 136.765522] user pgtable: 4k pages, 48-bit VAs, pgdp = 000000005c4e2577
[ 136.772265] [0000000000000000] pgd=0000000000000000
[ 136.777160] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[ 136.782732] Modules linked in: brcmfmac(O) brcmutil(O) cfg80211(O) compat(O)
[ 136.789788] Process wificond (pid: 3175, stack limit = 0x00000000053048fb)
[ 136.796664] CPU: 3 PID: 3175 Comm: wificond Tainted: G O 4.19.42-00001-g531a5f5 #1
[ 136.805532] Hardware name: Freescale i.MX8MQ EVK (DT)
[ 136.810584] pstate: 60400005 (nZCv daif +PAN -UAO)
[ 136.815429] pc : brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[ 136.821811] lr : brcmf_pno_config_sched_scans+0x67c/0xa80 [brcmfmac]
[ 136.828162] sp : ffff00000e9a3880
[ 136.831475] x29: ffff00000e9a3890 x28: ffff800020543400
[ 136.836786] x27: ffff8000b1008880 x26: ffff0000012bf6a0
[ 136.842098] x25: ffff80002054345c x24: ffff800088d22400
[ 136.847409] x23: ffff0000012bf638 x22: ffff0000012bf6d8
[ 136.852721] x21: ffff8000aced8fc0 x20: ffff8000ac164400
[ 136.858032] x19: ffff00000e9a3946 x18: 0000000000000000
[ 136.863343] x17: 0000000000000000 x16: 0000000000000000
[ 136.868655] x15: ffff0000093f3b37 x14: 0000000000000050
[ 136.873966] x13: 0000000000003135 x12: 0000000000000000
[ 136.879277] x11: 0000000000000000 x10: ffff000009a61888
[ 136.884589] x9 : 000000000000000f x8 : 0000000000000008
[ 136.889900] x7 : 303a32303d726464 x6 : ffff00000a1f957d
[ 136.895211] x5 : 0000000000000000 x4 : ffff00000e9a3942
[ 136.900523] x3 : 0000000000000000 x2 : ffff0000012cead8
[ 136.905834] x1 : ffff0000012bf6d8 x0 : 0000000000000000
[ 136.911146] Call trace:
[ 136.913623] brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[ 136.919658] brcmf_pno_start_sched_scan+0xa4/0x118 [brcmfmac]
[ 136.925430] brcmf_cfg80211_sched_scan_start+0x80/0xe0 [brcmfmac]
[ 136.931636] nl80211_start_sched_scan+0x140/0x308 [cfg80211]
[ 136.937298] genl_rcv_msg+0x358/0x3f4
[ 136.940960] netlink_rcv_skb+0xb4/0x118
[ 136.944795] genl_rcv+0x34/0x48
[ 136.947935] netlink_unicast+0x264/0x300
[ 136.951856] netlink_sendmsg+0x2e4/0x33c
[ 136.955781] __sys_sendto+0x120/0x19c

Affected products

VendorProductAffectedFixed
Linux Linux 4.13 4.14.296

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.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.0.3-1 —
Debian 13 linux 6.0.3-1 —
Debian 12 linux 6.0.3-1 —
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1014.16 —
Ubuntu 24.04 LTS linux-riscv +10 No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-60.66 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1030.34 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1033.40 —
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1033.40.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1029.36 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1027.32 —
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1015.19 —
Ubuntu 22.04 LTS linux-ibm 5.15.0-1025.28 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1025.30 —
Ubuntu 22.04 LTS linux-kvm 5.15.0-1028.33 —
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1017.17 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1029.35 —
Ubuntu 22.04 LTS linux-raspi 5.15.0-1024.26 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-139.156 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1096.104 —
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1030.34~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1103.109 —
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1033.40~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1058.64 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1100.109 —
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1029.36~20.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-60.66~20.04.1 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1044.49 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1025.30~20.04.1 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1012.14 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1086.92 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1093.102 —
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1029.35~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1080.91 —
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1029.33~20.04.1 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1021.25 —
Ubuntu 18.04 LTS linux 4.15.0-204.215 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1150.163 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1096.104~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1161.176 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1103.109~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1145.161 —
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1100.109~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-139.156~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1044.49~18.04.1 —
Ubuntu 18.04 LTS linux-kvm 4.15.0-1135.140 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1114.125 —
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1093.102~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1080.91~18.04.1 —
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
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-updates 20.04 LTS linux-aws-fips 5.4.0-1096.104+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1103.109+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1072.81 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1100.109+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2089.95 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2070.76 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1107.118 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2054.59 —
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1151.164~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1162.177~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1146.162~16.04.1 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-206.217~16.04.1 —
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1115.126~16.04.1 —
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1162.177~14.04.1 —
ReleasePackageFixed inAdvisory
RHEL 9 bpftool 7.0.0-284.11.1.el9_2 RHSA-2023:2458
RHEL 9 perf +48 5.14.0-284.11.1.el9_2 RHSA-2023:2458
RHEL 8 perf +26 4.18.0-477.10.1.el8_8 RHSA-2023:2951
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.194.1 SUSE-SU-2026:0617-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.194.1.150400.24.98.3 SUSE-SU-2026:0617-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.290.1 SUSE-SU-2026:0316-1
Show 11 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.194.1.150400.24.98.3 SUSE-SU-2026:0617-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.194.1 SUSE-SU-2026:0617-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.118.1 SUSE-SU-2026:0263-1
SLE Micro 5.5 kernel-source +1 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.194.1 SUSE-SU-2026:0617-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.194.1.150400.24.98.3 SUSE-SU-2026:0617-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.142.1 SUSE-SU-2026:0411-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.194.1 SUSE-SU-2026:0617-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.194.1.150400.24.98.3 SUSE-SU-2026:0617-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.142.1 SUSE-SU-2026:0411-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.232.1 SUSE-SU-2026:0369-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.232.1.150300.18.138.1 SUSE-SU-2026:0369-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.232.1 SUSE-SU-2026:0350-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_34 1-150500.11.3.1 SUSE-SU-2026:0317-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.194.1 SUSE-SU-2026:0617-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_48 1-150400.9.7.1 SUSE-SU-2026:0617-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.290.1 SUSE-SU-2026:0316-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_76 1-8.7.1 SUSE-SU-2026:0316-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.133.1 SUSE-SU-2026:0317-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.133.1.150500.6.65.1 SUSE-SU-2026:0317-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.194.1 SUSE-SU-2026:0617-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.194.1.150400.24.98.3 SUSE-SU-2026:0617-1

Advisories 10

References