CVE-2024-26816

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> x86, relocs: Ignore relocations in .notes section<br /> <br /> When building with CONFIG_XEN_PV=y, .text symbols are emitted into<br /> the .notes section so that Xen can find the "startup_xen" entry point.<br /> This information is used prior to booting the kernel, so relocations<br /> are not useful. In fact, performing relocations against the .notes<br /> section means that the KASLR base is exposed since /sys/kernel/notes<br /> is world-readable.<br /> <br /> To avoid leaking the KASLR base without breaking unprivileged tools that<br /> are expecting to read /sys/kernel/notes, skip performing relocations in<br /> the .notes section. The values readable in .notes are then identical to<br /> those found in System.map.