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Vulnerability · Published Sep 15, 2025 · Assigned by Linux

CVE-2022-50321wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit()

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 94.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it. Compile tested only.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.20-1DEBIAN-CVE-2022-50321
Debian:13linux6.1.20-1DEBIAN-CVE-2022-50321
Debian:14linux6.1.20-1DEBIAN-CVE-2022-50321
Ubuntu:22.04:LTSlinux5.15.0-75.82UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-aws5.15.0-1038.43UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-azure5.15.0-1040.47UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1041.48.1UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-gcp5.15.0-1036.44UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-gke5.15.0-1036.41UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1022.27UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-ibm5.15.0-1032.35UBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1033.38UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-kvm5.15.0-1035.40UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-75.82UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1027.27UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1015.15UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-oracle5.15.0-1037.43UBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-raspi5.15.0-1032.35UBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50321
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50321
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50321

Affected products (as reported)

VendorProductVersions
Linux Linux 270a6c1f65fe68a28a5d39cd405592c550b496c7 – before 4c55fdebc1c358de96bfab52ed309d58a3ba66ef270a6c1f65fe68a28a5d39cd405592c550b496c7 – before e5d01e85cf46628647cd696cb72ba4659b18967f270a6c1f65fe68a28a5d39cd405592c550b496c7 – before d869a189505224601e310c7769cb90b0e2f60b31270a6c1f65fe68a28a5d39cd405592c550b496c7 – before e08e6812efb6a8c676e733de0518594d1517e0d9270a6c1f65fe68a28a5d39cd405592c550b496c7 – before e8ef89e5b89ee041a94eecfb6c31fcc237f9168c270a6c1f65fe68a28a5d39cd405592c550b496c7 – before 7f159116d620615779adbf88a5d94713702216d8270a6c1f65fe68a28a5d39cd405592c550b496c7 – before 3a4d18318f473e97d628f410215b3fac32d07aed270a6c1f65fe68a28a5d39cd405592c550b496c7 – before 212fde3fe76e962598ce1d47b97cc78afdfc71b3
Linux Linux 4.13

References