CVE-2026-43340

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> comedi: Reinit dev-&gt;spinlock between attachments to low-level drivers<br /> <br /> `struct comedi_device` is the main controlling structure for a COMEDI<br /> device created by the COMEDI subsystem. It contains a member `spinlock`<br /> containing a spin-lock that is initialized by the COMEDI subsystem, but<br /> is reserved for use by a low-level driver attached to the COMEDI device<br /> (at least since commit 25436dc9d84f ("Staging: comedi: remove RT<br /> code")).<br /> <br /> Some COMEDI devices (those created on initialization of the COMEDI<br /> subsystem when the "comedi.comedi_num_legacy_minors" parameter is<br /> non-zero) can be attached to different low-level drivers over their<br /> lifetime using the `COMEDI_DEVCONFIG` ioctl command. This can result in<br /> inconsistent lock states being reported when there is a mismatch in the<br /> spin-lock locking levels used by each low-level driver to which the<br /> COMEDI device has been attached. Fix it by reinitializing<br /> `dev-&gt;spinlock` before calling the low-level driver&amp;#39;s `attach` function<br /> pointer if `CONFIG_LOCKDEP` is enabled.