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Vulnerability · Published Apr 1, 2025 · Assigned by Linux

CVE-2025-21909wifi: nl80211: reject cooked mode if it is set along with other flags

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 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 92.5% 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: nl80211: reject cooked mode if it is set along with other flags It is possible to set both MONITOR_FLAG_COOK_FRAMES and MONITOR_FLAG_ACTIVE flags simultaneously on the same monitor interface from the userspace. This causes a sub-interface to be created with no IEEE80211_SDATA_IN_DRIVER bit set because the monitor interface is in the cooked state and it takes precedence over all other states. When the interface is then being deleted the kernel calls WARN_ONCE() from check_sdata_in_driver() because of missing that bit. Fix this by rejecting MONITOR_FLAG_COOK_FRAMES if it is set along with other flags. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.133-1DEBIAN-CVE-2025-21909
Debian:13linux6.12.19-1DEBIAN-CVE-2025-21909
Debian:14linux6.12.19-1DEBIAN-CVE-2025-21909
Ubuntu:22.04:LTSlinux5.15.0-140.150UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux6.8.0-84.84UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux6.8.0-84.84USN-7764-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-aws5.15.0-1084.91UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-aws6.8.0-1039.41UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-aws6.8.0-1039.41USN-7764-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1039.41~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1039.41~22.04.1USN-7766-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1089.98UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-azure6.8.0-1038.44USN-7802-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1038.44UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1USN-7628-1
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1036.42~22.04.1USN-7802-1
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1036.42~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1089.98.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1025.27UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1025.27USN-7809-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1083.92UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-gcp6.8.0-1040.42UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-gcp6.8.0-1040.42USN-7764-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1016.16~24.04.1USN-7605-1
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1016.16~24.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1040.42~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1040.42~22.04.1USN-7766-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1081.87UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-gke6.8.0-1036.40USN-7764-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1036.40UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1066.74UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1023.25UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1023.25USN-7764-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-28.28~24.04.1USN-7605-1
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-28.28~24.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-85.85~22.04.1USN-7801-1
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-84.84~22.04.1USN-7764-2
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-85.85~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-ibm5.15.0-1076.79UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-ibm6.8.0-1037.37UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-ibm6.8.0-1037.37USN-7779-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1037.37~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1037.37~22.04.1USN-7779-1
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1079.85UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-kvm5.15.0-1080.85UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-140.150UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-84.84.1UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-84.84.1USN-7764-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1015.16~24.04.2UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1015.16~24.04.2USN-7605-2
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-84.84.1~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-84.84.1~22.04.1USN-7764-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1078.79UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1039.42USN-7765-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1039.42UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1012.12UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1039.42~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1039.42~22.04.1USN-7765-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1039.42.1USN-7765-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1039.42.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1037.37UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1010.10UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1026.26UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1024.24UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1024.24USN-7606-1
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-oracle5.15.0-1081.87UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-oracle6.8.0-1037.38USN-7801-2
Ubuntu:24.04:LTSlinux-oracle6.8.0-1037.38UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1037.38~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1037.38~22.04.1USN-7801-3
Ubuntu:22.04:LTSlinux-raspi5.15.0-1078.81UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-raspi6.8.0-1039.43USN-7790-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1039.43UBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-84.84~22.04.1UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-21909
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1018.19UBUNTU-CVE-2025-21909
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1050.54UBUNTU-CVE-2025-21909

Affected products (as reported)

VendorProductVersions
Linux Linux 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before 5ea856d93794c4afa5542defd8c61f2708dc245a66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before 351eb7ac53ff1cd94d893c0c4534ced2f36ae7d766f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before cd1bdcb77fdc03c253137e55bae10551b348146166f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before 236f41ca728f23210b31ed2d1d8a6df575a4b2d666f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before ebebbb0eded2ed9a1abfa31962f6fb699e6abce766f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before 521e55c2b0d6028861ac0a2d06aa57bb0e3ac48666f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before ac4860141300581d3e2f6c6dafa37220f7ea9f6566f7ac50ed7cc5c19a62bc97e8f6e7891004a03a – before 49f27f29446a5bfe633dd2cc0cfebd48a1a5e77f
Linux Linux 2.6.26

References