UBUNTU-CVE-2026-80690: Null Pointer Dereference
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Initialize hba->rpmbs list in ufshcd Initialize the hba->rpmbs list in ufshcdallochost() to prevent NULL pointer dereference in the device teardown path if ufsrpmbprobe() fails.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/linux-hwe-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-42.42~24.04.1 - Upgrade
Upgrade
ubuntu/linux-riscv-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-42.42.1~24.04.1 - Upgrade
Upgrade
ubuntu/linuxto a version that resolves this vulnerability.Fixed in 7.0.0-42.42 - Upgrade
Upgrade
ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 7.0.0-1016.17 - Upgrade
Upgrade
ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 7.0.0-1016.18 - Upgrade
Upgrade
ubuntu/linux-ibmto a version that resolves this vulnerability.Fixed in 7.0.0-1017.17 - Upgrade
Upgrade
ubuntu/linux-oem-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-1017.17 - Upgrade
Upgrade
ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 7.0.0-1015.16 - Upgrade
Upgrade
ubuntu/linux-riscvto a version that resolves this vulnerability.Fixed in 7.0.0-42.42.1 - Configuration
Initialize the hba->rpmbs list in ufshcd_alloc_host() to prevent NULL pointer dereference during device teardown if ufs_rpmb_probe() fails.
Linux kernel SCSI UFS core hba->rpmbs list = initialized
Event History
Frequently Asked Questions
Which systems are exposed to this issue?
The issue applies to the listed Ubuntu kernel packages: linux-riscv, linux-realtime, linux-hwe-edge, linux-azure, linux-gcp, linux-azure-fde, linux-gke, and linux-aws-5.0. It is specific to the Linux kernel UFS subsystem.
What condition is required to trigger the NULL pointer dereference?
The UFS RPMB probe, ufs_rpmb_probe(), must fail, followed by device teardown. Without initialization of the hba->rpmbs list, that teardown path can dereference a NULL pointer.