CVE-2025-71306

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()<br /> <br /> KASAN reported a stack-out-of-bounds access in ima_appraise_measurement<br /> from is_bprm_creds_for_exec:<br /> <br /> BUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0<br /> Read of size 1 at addr ffffc9000160f940 by task sudo/550<br /> The buggy address belongs to stack of task sudo/550<br /> and is located at offset 24 in frame:<br /> ima_appraise_measurement+0x0/0x16a0<br /> This frame has 2 objects:<br /> [48, 56) &amp;#39;file&amp;#39;<br /> [80, 148) &amp;#39;hash&amp;#39;<br /> <br /> This is caused by using container_of on the *file pointer. This offset<br /> calculation is what triggers the stack-out-of-bounds error.<br /> <br /> In order to fix this, pass in a bprm_is_check boolean which can be set<br /> depending on how process_measurement is called. If the caller has a<br /> linux_binprm pointer and the function is BPRM_CHECK we can determine<br /> is_check and set it then. Otherwise set it to false.