CVE-2026-68090 debugobjects: Plug race against a concurrent OOM disable

In the Linux kernel, the following vulnerability has been resolved: debugobjects: Plug race against a concurrent OOM disable syzbot reported a puzzling splat: WARNING: kernel/time/hrtimer.c:443 at stubtimer+0xa/0x20 stubtimer is installed as timer callback function in hrtimerfixupassertinit, whic...