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Vulnerability · Published Oct 18, 2026 · Assigned by Linux

CVE-2026-98834mtd: core: avoid double-free of OTP NVMEM device

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 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 95.3% 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: mtd: core: avoid double-free of OTP NVMEM device If factory OTP setup fails after the user OTP NVMEM device has been registered, mtd_otp_nvmem_add() unregisters the user device but leaves mtd->otp_user_nvmem set. On an error, the caller unregisters it again. For -EOPNOTSUPP, registration continues and normal teardown unregisters it again. Clear mtd->otp_user_nvmem after unregistering it.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-98834
Debian:13linuxno fix listedDEBIAN-CVE-2026-98834
Debian:14linux7.2.10-1DEBIAN-CVE-2026-98834
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98834
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-98834
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-98834
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-98834

Affected products (as reported)

VendorProductVersions
Linux Linux e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 – before cecf007418b93a2cbc94269e07fe2fb28f54d8fbe0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 – before 26300879cd8e4612dce66bb8f6ff7cd35fcf3e596d1af517817a760d7af3dee0fc4603645485495cf1b4affca1e13706ca2eb075bf6775421236d7d1949476b8601bde5459048eebdf457c9db20addd8dd6c85f98ff33b009b819090268cbf679dc208b95.15.111 – before 5.166.1.28 – before 6.2
Linux Linux 6.4

References