CVE-2023-52619

In the Linux kernel, the following vulnerability has been resolved: pstore/ram: Fix crash when setting number of cpus to an odd number When the number of cpu cores is adjusted to 7 or other odd numbers, the zone size will become an odd number. The address of the zone will become: addr of zone0 = BASE addr of zone1 = BASE + zone_size addr of zone2 = BASE + zone_size*2 … The address of zone1/3/5/7 will be mapped to non-alignment va. Eventually crashes will occur when accessing these va. So, use ALIGN_DOWN() to make sure the zone size is even to avoid this bug.

Date published : 2024-03-18

https://git.kernel.org/stable/c/0593cfd321df9001142a9d2c58d4144917dff7ee

https://git.kernel.org/stable/c/2a37905d47bffec61e95d99f0c1cc5dc6377956c