In the Linux kernel, the following vulnerability has been resolved: drm: bridge: it66121: Fix invalid connector dereference Fix the NULL pointer dereference when no monitor is connected, and the sound card is opened from userspace. Instead return an empty buffer (of zeroes) as the EDID information to the sound framework if there is no connector attached.
https://git.kernel.org/stable/c/d0375f6858c4ff7244b62b02eb5e93428e1916cd
https://git.kernel.org/stable/c/2c80c4f0d2845645f41cbb7c9304c8efbdbd4331
https://git.kernel.org/stable/c/1669d7b21a664aa531856ce85b01359a376baebc
https://git.kernel.org/stable/c/1374561a7cbc9a000b77bb0473bb2c19daf18d86