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Vulnerability · Published May 27, 2026 · Assigned by Linux

CVE-2026-45932bpf: Fix tcx/netkit detach permissions when prog fd isn't given

High 7.3

In plain English

A high-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 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.2%top 93.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tcx/netkit detach permissions when prog fd isn't given This commit fixes a security issue where BPF_PROG_DETACH on tcx or netkit devices could be executed by any user when no program fd was provided, bypassing permission checks. The fix adds a capability check for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.115-2DEBIAN-CVE-2026-45932
Debian:14linux6.18.14-1DEBIAN-CVE-2026-45932
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1035.38UBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-45932
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-45932
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-45932
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-45932

Affected products (as reported)

VendorProductVersions
Linux Linux e420bed025071a623d2720a92bc2245c84757ecb – before 8e1623e7d61faf16cbadc80550da874303611ff5e420bed025071a623d2720a92bc2245c84757ecb – before 0c249f523175963b0a746bba673ecebdf6cefd86e420bed025071a623d2720a92bc2245c84757ecb – before 4e0772cded109c238411f2fac36ac39302758b81e420bed025071a623d2720a92bc2245c84757ecb – before 3f04cc1e5374da4c5e791ae010a06cfea7bacbe6e420bed025071a623d2720a92bc2245c84757ecb – before ae23bc81ddf7c17b663c4ed1b21e35527b0a7131
Linux Linux 6.6

References