CVE-2025-38178

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> EDAC/igen6: Fix NULL pointer dereference<br /> <br /> A kernel panic was reported with the following kernel log:<br /> <br /> EDAC igen6: Expected 2 mcs, but only 1 detected.<br /> BUG: unable to handle page fault for address: 000000000000d570<br /> ...<br /> Hardware name: Notebook V54x_6x_TU/V54x_6x_TU, BIOS Dasharo (coreboot+UEFI) v0.9.0 07/17/2024<br /> RIP: e030:ecclog_handler+0x7e/0xf0 [igen6_edac]<br /> ...<br /> igen6_probe+0x2a0/0x343 [igen6_edac]<br /> ...<br /> igen6_init+0xc5/0xff0 [igen6_edac]<br /> ...<br /> <br /> This issue occurred because one memory controller was disabled by<br /> the BIOS but the igen6_edac driver still checked all the memory<br /> controllers, including this absent one, to identify the source of<br /> the error. Accessing the null MMIO for the absent memory controller<br /> resulted in the oops above.<br /> <br /> Fix this issue by reverting the configuration structure to non-const<br /> and updating the field &amp;#39;res_cfg-&gt;num_imc&amp;#39; to reflect the number of<br /> detected memory controllers.