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Vulnerability · Published Sep 24, 2026 · Assigned by Linux

CVE-2026-97434dpaa2-switch: fix handling of NAPI on the remove path

Unrated

In plain English

A 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 )–Not rated
Exploit odds (30 days)0.2%top 93.3% 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: dpaa2-switch: fix handling of NAPI on the remove path All the NAPI instances for a DPSW device are attached to the first switch port's net_device but shared by all ports. The NAPI instances get disabled only once the last port goes down. This causes an issue on the .remove() path where each port is unregistered and freed one at a time, causing the NAPI instances to be deleted even though they are not disabled. In order to avoid this, split up the unregister_netdev() calls from the free_netdev() so that we make sure all ports go down before we attempt a deletion of NAPI instances. Also, make the netif_napi_del() explicit as it is on the .probe() path.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.190-1DEBIAN-CVE-2026-97434
Debian:13linux6.12.111-1DEBIAN-CVE-2026-97434
Debian:14linux7.2.6-1DEBIAN-CVE-2026-97434
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-97434
Ubuntu:22.04:LTSlinux5.15.0-202.212UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-aws5.15.0-1119.126UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure5.15.0-1125.134UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1124.133UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-gcp5.15.0-1120.130UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-gke5.15.0-1115.121UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1102.110UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-ibm5.15.0-1113.117UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1114.120UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-kvm5.15.0-1111.116UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-197.207UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1114.115UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1070.72UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1059.59UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-oracle5.15.0-1116.122UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-97434
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-97434
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-97434
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-97434

Affected products (as reported)

VendorProductVersions
Linux Linux 0b1b71370458860579831e77485883fcf2e8fbbe – before d39603e21087e9ef9cd125e5895cdc70b2eb154d0b1b71370458860579831e77485883fcf2e8fbbe – before bd16f46d0796109d241d6311a7577f9956467c960b1b71370458860579831e77485883fcf2e8fbbe – before c996faba71fc465ad12c6d177bd1a9ad974f9ee80b1b71370458860579831e77485883fcf2e8fbbe – before 569df157eb874cb3b50554d73b89f31599397b420b1b71370458860579831e77485883fcf2e8fbbe – before 6518f87771c8833e587bd9881346fa759651c2ae0b1b71370458860579831e77485883fcf2e8fbbe – before e23d7c8c1d4ba435c457d7ffb2669175ec819b07
Linux Linux 5.13

References