Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the gpio module, for cdev devices, it is necessary to ensure that the cdev file descriptor remains active before emitting events. When the fput function is finally called on a file descriptor, the release action may be delayed...

CVE-2025-40249

In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: make sure the cdev fd is still active before emitting events With the final call to fput on a file descriptor, the release action may be deferred and scheduled on a work queue. The reference count of that descriptor i...

UBUNTU-CVE-2025-40249

In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: make sure the cdev fd is still active before emitting events With the final call to fput on a file descriptor, the release action may be deferred and scheduled on a work queue. The reference count of that descriptor i...

CVE-2025-40249 gpio: cdev: make sure the cdev fd is still active before emitting events

In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: make sure the cdev fd is still active before emitting events With the final call to fput on a file descriptor, the release action may be deferred and scheduled on a work queue. The reference count of that descriptor i...

CVE-2025-40249

CVE-2025-40249 affects the Linux kernel GPIO cdev path. The issue arises when a GPIO change notification is emitted after the file descriptor’s reference count drops to zero but before the .release() callback is executed from the workqueue, leaving the descriptor potentially in use-after-free. Th...