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CVE-2026-31606 PUBLISHED

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_hid: don't call cdev_init while cdev in use When calling unbind, then bind again, cdev_init reinitialized the cdev, even though there may still be references to it. That's the case when the /dev/hidg* device is still opened. This obviously unsafe behavior like oopes. This fixes this by using cdev_alloc to put the cdev on the heap. That way, we can simply allocate a new one in hidg_bind.

Affected Products

VendorProductVersions
linuxlinux_kernel0, 0, 0
LinuxLinux6.18.24, 6.19.14, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

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