CVE-2026-53286

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> idpf: fix double free and use-after-free in aux device error paths<br /> <br /> When auxiliary_device_add() fails in idpf_plug_vport_aux_dev() or<br /> idpf_plug_core_aux_dev(), the err_aux_dev_add label calls<br /> auxiliary_device_uninit() and falls through to err_aux_dev_init. The<br /> uninit call will trigger put_device(), which invokes the release<br /> callback (idpf_vport_adev_release / idpf_core_adev_release) that frees<br /> iadev. The fall-through then reads adev-&gt;id from the freed iadev for<br /> ida_free() and double-frees iadev with kfree().<br /> <br /> Free the IDA slot and clear the back-pointer before uninit, while adev<br /> is still valid, then return immediately.<br /> <br /> Commit 65637c3a1811 ("idpf: fix UAF in RDMA core aux dev deinitialization")<br /> fixed the same use-after-free in the matching unplug path in this file but<br /> missed both probe error paths.