kernel: mm: prevent derefencing NULL ptr in pfn_section_valid()

In the Linux kernel, the following vulnerability has been resolved: mm: prevent derefencing NULL ptr in pfnsectionvalid Commit 5ec8e8ea8b77 "mm/sparsemem: fix race in accessing memorysection-usage" changed pfnsectionvalid to add a READONCE call around "ms-usage" to fix a race with sectiondeactiva...

kernel: mm: prevent derefencing NULL ptr in pfn_section_valid()

In the Linux kernel, the following vulnerability has been resolved: mm: prevent derefencing NULL ptr in pfnsectionvalid Commit 5ec8e8ea8b77 "mm/sparsemem: fix race in accessing memorysection-usage" changed pfnsectionvalid to add a READONCE call around "ms-usage" to fix a race with sectiondeactiva...

UBUNTU-CVE-2024-43830

In the Linux kernel, the following vulnerability has been resolved: leds: trigger: Unregister sysfs attributes before calling deactivate Triggers which have trigger specific sysfs attributes typically store related data in trigger-data allocated by the activate callback and freed by the deactivat...