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Vulnerability · Published May 1, 2026 · Assigned by Linux

CVE-2026-43034bnxt_en: set backing store type from query type

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 95.3% 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: bnxt_en: set backing store type from query type bnxt_hwrm_func_backing_store_qcaps_v2() stores resp->type from the firmware response in ctxm->type and later uses that value to index fixed backing-store metadata arrays such as ctx_arr[] and bnxt_bstore_to_trace[]. ctxm->type is fixed by the current backing-store query type and matches the array index of ctx->ctx_arr. Set ctxm->type from the current loop variable instead of depending on resp->type. Also update the loop to advance type from next_valid_type in the for statement, which keeps the control flow simpler for non-valid and unchanged entries.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.115-2DEBIAN-CVE-2026-43034
Debian:14linux6.19.12-1DEBIAN-CVE-2026-43034
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-43034
Ubuntu:26.04:LTSlinux-nvidia7.0.0-1006.6UBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43034
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-43034
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-43034
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-43034

Affected products (as reported)

VendorProductVersions
Linux Linux 6a4d0774f02d61f8c75ffe2e38a8553410fe52e9 – before c66a27ca534580de1d28cf568f59fe5f50d43e156a4d0774f02d61f8c75ffe2e38a8553410fe52e9 – before c8d53b70166d1dc463ef42adb7293e1a770822c76a4d0774f02d61f8c75ffe2e38a8553410fe52e9 – before 29732b68a6816a815d58e9ab229844c23617e1e06a4d0774f02d61f8c75ffe2e38a8553410fe52e9 – before 4ee937107d52f9e5c350e4b5e629760e328b3d9f
Linux Linux 6.8

References