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Vulnerability · Published Sep 25, 2026 · Assigned by Linux

CVE-2026-97916accel/ivpu: Validate firmware log buffer metadata

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 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 90.0% 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: accel/ivpu: Validate firmware log buffer metadata The tracing log headers parsed by fw_log_print_buffer() reside in DMA-shared BOs that the NPU firmware can write to. fw_log_from_bo() validated log->header_size and log->size, but fw_log_print_buffer() re-read those same fields from shared memory afterwards, allowing a TOCTOU where firmware changes them between the check and the use, and making the host dereference out-of-bounds addresses while printing logs. Snapshot the validated values once with READ_ONCE() and pass them down explicitly in a new struct ivpu_fw_log_desc instead of re-reading them from the shared struct.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.111-1DEBIAN-CVE-2026-97916
Debian:14linux7.2.7-1DEBIAN-CVE-2026-97916
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-97916
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-97916
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-97916
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-97916
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-97916

Affected products (as reported)

VendorProductVersions
Linux Linux d4e4257afa6ed5205eda993180401fc2c20e4b60 – before 07d4190d75021c38b7994045179aa29131634d4fd4e4257afa6ed5205eda993180401fc2c20e4b60 – before 8ec3d6972f1440fae6c8dadd1859892775208759d4e4257afa6ed5205eda993180401fc2c20e4b60 – before 40868f80a89199630b03d4457876f9a1feba0660d4e4257afa6ed5205eda993180401fc2c20e4b60 – before b1555f63ee1a680f280bc18e8dac416f250e2ec3d4e4257afa6ed5205eda993180401fc2c20e4b60 – before 0724afc55c77c36c7feb9a7264b02aa7593c5c2d
Linux Linux 6.6

References