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Vulnerability · Published Oct 18, 2026 · Assigned by Linux

CVE-2026-98656iio: trigger: cancel reenable_work before freeing trigger

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: trigger: cancel reenable_work before freeing trigger iio_trigger_notify_done_atomic() defers ->reenable() into trig->reenable_work on the system workqueue, and the worker dereferences the owning trigger through container_of(). Nothing cancels this work before iio_trig_release() frees the trigger, so a worker armed by the last in-flight IRQ can outlive the free and touch freed memory. Cancel it at the top of iio_trig_release(), which every free path reaches through the device core's final put_device(). Found by an in-house static analysis tool.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-98656
Debian:13linux6.12.113-1DEBIAN-CVE-2026-98656
Debian:14linux7.2.10-1DEBIAN-CVE-2026-98656
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-98656
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98656
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-98656
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-98656
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-98656

Affected products (as reported)

VendorProductVersions
Linux Linux a18aeac73c0f692ba40964f5f56e182312ae843b – before beec4c9e23b8293c41d3448f9807c28fc9a599d49020ef659885f2622cfb386cc229b6d618362895 – before 4e790a5bd4249877bcf0c94db12ac490965f92969020ef659885f2622cfb386cc229b6d618362895 – before ac5d26a46c90ff61fd574eff4e8f0d71c905828a9020ef659885f2622cfb386cc229b6d618362895 – before cf513df1a2c75566cdc802d9da47f62e8d6cfd189020ef659885f2622cfb386cc229b6d618362895 – before e64703280ce7a23a43c27efebeb7da457c88bf5c9020ef659885f2622cfb386cc229b6d618362895 – before 882d0011c59ff8ac15188ec9ce071399ecfa10ad9020ef659885f2622cfb386cc229b6d618362895 – before 2a57b9246cecd5dd797a42eb310d6c8816f26d9e2c5c948451d57596640b20887b06b523d376eb24
Linux Linux 5.17

References