Vulnerability · Published Oct 6, 2026 · Assigned by Linux

CVE-2026-98222KEYS: encrypted: fix integer overflow of datablob_len

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 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 93.9% 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: KEYS: encrypted: fix integer overflow of datablob_len encrypted_key_alloc() stores datablob_len in a u16. It is computed from multiple string and payload lengths. If the result exceeds U16_MAX, the assignment truncates the allocation size. KASAN reports a 32760-byte slab-out-of-bounds write when __ekey_init() copies the master key description into the undersized buffer. The total payload length stored in key->datalen is also a u16. Use check_add_overflow() to reject values that do not fit either destination, and use kzalloc_flex() for the flexible-array allocation.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:8kernel4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-debug5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-debug-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-abi-stablelists4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-abi-stablelists5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-core4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-cross-headers4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-cross-headers5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-debug4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-debug5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-debug-core4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-debug-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-debug-devel4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-debug-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-debug-modules4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-debug-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-debug-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-devel4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-devel-matched5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-doc4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-doc5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-headers4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-headers5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-modules4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-modules-extra4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-core4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-debug4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-debug5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-debug-core4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-debug-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-devel4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-modules4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-rt-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.180.1.rt7.521.el8_10ALSA-2026:92208
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-tools4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-tools5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-tools-libs4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-tools-libs5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-uki-virt5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-zfcpdump4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-zfcpdump5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9libperf5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8perf4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9perf5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:8python3-perf4.18.0-553.180.1.el8_10ALSA-2026:92209
AlmaLinux:9python3-perf5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9rtla5.14.0-687.61.1.el9_8ALSA-2026:90365
AlmaLinux:9rv5.14.0-687.61.1.el9_8ALSA-2026:90365
Debian:12linuxno fix listedDEBIAN-CVE-2026-98222
Debian:13linux6.12.113-1DEBIAN-CVE-2026-98222
Debian:14linux7.2.8-1DEBIAN-CVE-2026-98222
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-98222
Rocky Linux:10kernel0:6.12.0-211.72.1.el10_2RLSA-2026:93413
Rocky Linux:8kernel0:4.18.0-553.180.1.el8_10RLSA-2026:92209
Rocky Linux:8kernel0:4.18.0-553.180.1.el8_10.cloud.0.1RXSA-2026:92209
Rocky Linux:9kernel0:5.14.0-687.61.1.el9_8RLSA-2026:90365
Rocky Linux:9kernel0:5.14.0-687.61.1.el9_8.cloud.1.0RXSA-2026:90365
Rocky Linux:8kernel-rt0:4.18.0-553.180.1.rt7.521.el8_10RLSA-2026:92208
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98222
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-98222
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-98222
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-98222

Affected products (as reported)

VendorProductVersions
Linux Linux 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c – before 1e720f63dbafc093a8f5d519f05b67724993edd47e70cb4978507cf31d76b90e4cfb4c28cad87f0c – before a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b07e70cb4978507cf31d76b90e4cfb4c28cad87f0c – before cca38f2102a4cd35eda8d48950df4817b4b247577e70cb4978507cf31d76b90e4cfb4c28cad87f0c – before 8697c431e297eb0d0ab13dda6bc172b48a34f05c
Linux Linux 2.6.38

References