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Vulnerability · Published Oct 18, 2026 · Assigned by Linux

CVE-2026-98669iio: buffer: serialize buffer teardown with mode claims

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: iio: buffer: serialize buffer teardown with mode claims Buffer-mode claims hold mlock to guarantee that the device remains in buffer mode until the claim is released. Normal buffer updates take info_exist_lock followed by mlock in iio_update_buffers(). However, iio_device_unregister() disables and deactivates all buffers without taking mlock. This can invalidate buffer state, including active_scan_mask, while a buffer-mode claim is held. Take mlock in iio_disable_all_buffers() so that unregister honors the mode-claim lifetime guarantee. The info_exist_lock -> mlock ordering matches iio_update_buffers().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-98669
Debian:13linux6.12.113-1DEBIAN-CVE-2026-98669
Debian:14linux7.2.10-1DEBIAN-CVE-2026-98669
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-98669
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98669
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-98669
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-98669
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-98669

Affected products (as reported)

VendorProductVersions
Linux Linux a9c471892d75847671a246619c2148578f22bbc6 – before 261f54966ebf45ced5fe5e1fe5119c6c44e140ab7bca0af538a49dacb1470f233be0676bdc09605b – before cebbecb26d22368440c4779f8275d790cf3471770a8565425afd8ba0e1a0ea73e21da119ee6dacea – before 6a728408ff522b749c2a3c7e68f44e861fa0dbfb0a8565425afd8ba0e1a0ea73e21da119ee6dacea – before 89f3852a28fcf7bab599280cb082baa0675536db0a8565425afd8ba0e1a0ea73e21da119ee6dacea – before b466db9e68b4741af85f6c017e2bb0a2f025053f0a8565425afd8ba0e1a0ea73e21da119ee6dacea – before e63188d77e10c0951bf67da6c295f768fd1abf4b0a8565425afd8ba0e1a0ea73e21da119ee6dacea – before 84bb0fc46ccf6a545b8fdf57cda83770186ed8dd5.15.137 – before 5.15.224
Linux Linux 6.2

References