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Vulnerability · Published Sep 17, 2026 · Assigned by Linux

CVE-2026-90154ksmbd: scope session state changes to bound connections

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 89.1% 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: ksmbd: scope session state changes to bound connections ksmbd_all_conn_set_status() treats every connection whose transient binding flag is set as belonging to the target SessionId. A logoff or session replacement can consequently move an unrelated connection to NEED_RECONNECT or NEED_SETUP. Pass the target session itself and select connections using either the connection-local session xarray or the session's permanent channel list. Use the same association test while waiting for requests to drain. Serialize session-wide status changes under request_lock and do not overwrite EXITING or RELEASING. Protect the shutdown transition with the same lock so a concurrent session update cannot revive a closing connection.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-90154
Debian:13linux6.12.115-2DEBIAN-CVE-2026-90154
Debian:14linux7.2.6-1DEBIAN-CVE-2026-90154
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-90154
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-90154
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-90154
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-90154

Affected products (as reported)

VendorProductVersions
Linux Linux f5a544e3bab78142207e0242d22442db85ba1eff – before 3deefd5fb1368e2577144b0961b1a5df26b587d1f5a544e3bab78142207e0242d22442db85ba1eff – before 3d66f3ec3c69fa242939a9f9e6815df33390b1bbf5a544e3bab78142207e0242d22442db85ba1eff – before 1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0bf5a544e3bab78142207e0242d22442db85ba1eff – before 0875872718b98e8530fbc634e5aa7dbd3253b80df5a544e3bab78142207e0242d22442db85ba1eff – before c50e628122aed077695669e25b842e778511a43d
Linux Linux 5.15

References