The blkcg_init_queue function in block/blk-cgroup.c in the Linux kernel before 4.11 allows local users to cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation failure.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 4.10 | 4.11 |
| linux / linux_kernel | 4.1.41 | 4.1.51 |
| linux / linux_kernel | 4.3 | 4.4.123 |
| linux / linux_kernel | 4.5 | 4.9.89 |
| canonical / ubuntu_linux | 16.04 | 16.04.x |
| canonical / ubuntu_linux | 14.04 | 14.04.x |
| debian / debian_linux | 9.0 | 9.0.x |