Log in Start free

Vulnerability · Published Oct 18, 2026 · Assigned by Linux

CVE-2026-98668iio: buffer: Ensure bounce buffer used for unaligned case is zeroed.

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: Ensure bounce buffer used for unaligned case is zeroed. iio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory to userspace if the data passed in is not a multiple of 8 bytes and the timestamp is enabled. Specify __GFP_ZERO for the devm_krealloc() to ensure any extra space is cleared.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-98668
Debian:13linux6.12.113-1DEBIAN-CVE-2026-98668
Debian:14linux7.2.10-1DEBIAN-CVE-2026-98668
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-98668
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98668
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-98668
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-98668
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-98668

Affected products (as reported)

VendorProductVersions
Linux Linux 95ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 – before b953b8d5e6f2d53e81faa0f3b42856cdf16fe56395ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 – before b4f53cec8cc94b37601ce0bb2b272b6753beed9895ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 – before b5c2f21f645e40c70fda2a4283e6f2a81e5cb9f295ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 – before b134ef820610bd873c9d59999d9824710964ce8295ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 – before 3a87212b1a09a1fdd730ce5520f7b1fc0b48851195ec3fdf2b79eaff79e78688bbc2f7dbb98d68b6 – before 5330036bc68d23672bfcc16c60c54701ae123083
Linux Linux 5.16

References