CVE-2026-72482

A flaw was found in the gpib component of the Linux kernel. A double decrement of a descriptor counter within the commandioctl function can lead to a counter underflow. This re-enables a use-after-free vulnerability, where a concurrently active descriptor can be prematurely freed. This could resu...

CVE-2026-72482

In the Linux kernel, the following vulnerability has been resolved: gpib: fix double decrement of descriptorbusy in commandioctl commit d1857f8296dc "gpib: fix use-after-free in IO ioctl handlers" introduced a descriptorbusy reference counter to pin struct gpibdescriptor across IO ioctl operation...

UBUNTU-CVE-2026-72482

In the Linux kernel, the following vulnerability has been resolved: gpib: fix double decrement of descriptorbusy in commandioctl commit d1857f8296dc "gpib: fix use-after-free in IO ioctl handlers" introduced a descriptorbusy reference counter to pin struct gpibdescriptor across IO ioctl operation...

CVE-2026-72482

Summary of CVE-2026-72482 : In the Linux kernel’s gpib subsystem, a descriptor_busy reference counter used to pin gpib_descriptor across IO ioctl operations could be decremented twice in the command_ioctl() error path, causing the counter to underflow to -1 and enabling use-after-free on an activ...

CVE-2026-72482 gpib: fix double decrement of descriptor_busy in command_ioctl()

In the Linux kernel, the following vulnerability has been resolved: gpib: fix double decrement of descriptorbusy in commandioctl commit d1857f8296dc "gpib: fix use-after-free in IO ioctl handlers" introduced a descriptorbusy reference counter to pin struct gpibdescriptor across IO ioctl operation...