Race condition in Linux kernel - CVE-2026-93169

Vulnerability identifier: #VU150831

CSH Severity: Low

CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-93169

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local privileged user to trigger a race condition between runtime power management and device removal.

The vulnerability exists due to improper synchronization in zynqmp_dma_remove() in the ZynqMP DMA driver when removing or unbinding a device while runtime power management transitions occur. A local privileged user can remove or unbind the device during runtime power management activity to trigger a race condition between runtime power management and device removal.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)

Install security update from vendor's repository.

linux (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17

• https://git.kernel.org/stable/c/32f69e6c95b59f9cfc649ebf352a204d23ba93d7
• https://git.kernel.org/stable/c/516ba2d8b7aac4238f9fcbd58579c43c71b9b695
• https://git.kernel.org/stable/c/aec7cf9a5bd89047c58d5648bfce0b1bd19ba7d5

• Race condition in Linux kernel dma xilinx driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more