CVE-2021-47584

In the Linux kernel, the following vulnerability has been resolved: iocost: Fix divide-by-zero on donation from low hweight cgroup The donation calculation logic assumes that the donor has non-zero after-donation hweight, so the lowest active hweight a donating cgroup can have is 2 so that it can...

CVE-2024-36916

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: avoid out of bounds shift UBSAN catches undefined behavior in blk-iocost, where sometimes iocg-delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. 186.556576...

CVE-2024-36908

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: do not WARN if iocg was already offlined In iocgpaydebt, warn is triggered if 'activelist' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk...