{"id":121343,"date":"2025-01-15T09:46:00","date_gmt":"2025-01-15T07:46:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft"},"modified":"2025-01-15T09:46:00","modified_gmt":"2025-01-15T07:46:00","slug":"v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/v-gotovyashhemsya-v-relizu-yadre-linux-6-13-vyyavlen-sboj-vyzvannyj-kodom-sotrudnika-microsoft","title":{"rendered":"In de aanstaande release van de Linux-kernel 6.13 is een crash ontdekt, veroorzaakt door code van een Microsoft-medewerker","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Linus Torvalds was van plan om de release van de Linux-kernel 6.13 aanstaande zondag te publiceren, maar waarschijnlijk zal de testperiode van tak 6.13 met een week worden verlengd vanwege stabiliteitsproblemen met de wijzigingen die door een medewerker van Microsoft zijn aangebracht en in november in tak 6.13 zijn opgenomen. Daarnaast wordt opgemerkt dat de patch die de storing veroorzaakte op onconventionele wijze werd ingediend \u2014 maar werd geaccepteerd, hoewel het geen enkele bevestiging (ACK) ontving van de maintainers van de x86-architectuur, wat een schending is van de gangbare praktijken. <\/p>\n
The patch added the ability to use large memory pages in ROX (Read Only Execute) mode when allocating memory intended for executable code. ROX allows the use of memory with executable code in read-only mode, complicating the exploitation of certain vulnerabilities. In kernel 6.13, the use of a cache for large executable memory pages, reflected as ROX, was enabled by default for executable code modules on x86_64 systems. The change resolved the issue of mapping ROX pages for yet fully prepared executable code and eliminated the need for temporary remapping of ROX pages to write mode until the kernel modules were ready to operate. <\/p>\n
At the final stage of testing kernel 6.13, an engineer from Intel discovered a failure that prevented the kernel from correctly waking from sleep mode on some laptops with Intel processors (for example, those with CPUs based on the Alder Lake microarchitecture). The failure manifested when the kernel was compiled using Clang with Control Flow Integrity (CFI) protection mode enabled, blocking deviations from the normal execution order (control flow) due to exploits altering function pointers stored in memory. As a temporary solution, maintainers from Intel and AMD, responsible for the x86 architecture, suggested disabling EXECMEM_ROX usage in kernel 6.13 until a full patch that resolves the issue could be prepared and tested (the first fix option did not solve the problem). \n Bron: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"