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Vulnerability · Published Sep 17, 2026 · Assigned by Linux

CVE-2026-92491firmware: arm_scmi: Roll back partial protocol table registration

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 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 88.9% 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: firmware: arm_scmi: Roll back partial protocol table registration scmi_protocol_table_register() can leave earlier requests registered when a later entry in the same ID table fails. Each request retains a pointer to the driver's ID table, so a failed module load can leave a dangling pointer after the module storage is released. Unrequest only the successfully registered prefix, in reverse order, before returning the failure. Leave the failed entry and the remaining entries untouched because matching requests can be owned by another driver.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.111-1DEBIAN-CVE-2026-92491
Debian:14linux7.2.6-1DEBIAN-CVE-2026-92491
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-92491
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-92491
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-92491
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-92491
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-92491

Affected products (as reported)

VendorProductVersions
Linux Linux 41714150f3d148fbcd7a947869c85531b53c50d4 – before ee556d118b11c6f5b60a32c1e84f366b336ac7d72858f6e5f06440d6b9e9c3f57bc68915344830a9 – before 3fa8cabd2d8ed80dd0b818ca7fd410b591392ff62858f6e5f06440d6b9e9c3f57bc68915344830a9 – before 456856a34906475fcf4b23879237103770dc7ef22858f6e5f06440d6b9e9c3f57bc68915344830a9 – before 826413b858ea2969e4c3e8197d0065efc47c63432858f6e5f06440d6b9e9c3f57bc68915344830a9 – before 2224b622260ba590ab56ea1585d6bf7610be25b21294e1d50d96a3990dd115fda90bb120ec53f3296.1.191 – before 6.2
Linux Linux 6.9

References