CVE-2026-43171

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> EFI/CPER: don&amp;#39;t dump the entire memory region<br /> <br /> The current logic at cper_print_fw_err() doesn&amp;#39;t check if the<br /> error record length is big enough to handle offset. On a bad firmware,<br /> if the ofset is above the actual record, length -= offset will<br /> underflow, making it dump the entire memory.<br /> <br /> The end result can be:<br /> <br /> - the logic taking a lot of time dumping large regions of memory;<br /> - data disclosure due to the memory dumps;<br /> - an OOPS, if it tries to dump an unmapped memory region.<br /> <br /> Fix it by checking if the section length is too small before doing<br /> a hex dump.<br /> <br /> [ rjw: Subject tweaks ]