CVE-2026-98079

The Linux kernel contains a concurrency issue in the btrfs: zstd component where a writer can sleep indefinitely in zstd_get_workspace(). The root cause is a lost wakeup occurring because zstd_alloc_workspace() fails and the task queues unconditionally on zwsm->wait without re-testing the pool...

EUVD-2026-86909

In the Linux kernel, the following vulnerability has been resolved: btrfs: zstd: fix lost wakeup when waiting for a workspace A writer can sleep forever in zstdgetworkspace even though a workspace is free. When zstdallocworkspace fails, the task is queued on zwsm-wait and schedules unconditionall...

CVE-2026-64281: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: svcrdma: wake sq waiters when the transport closes Threads parked in svcrdmasqwait on scsqticketwait or scsendwait can hang indefinitely in TASKUNINTERRUPTIBLE state across transport teardown, pinning svcxprt references and...

CVE-2026-46223: Improper Locking

In the Linux kernel, the following vulnerability has been resolved: cgroup: Defer css percpuref kill on rmdir until cgroup is depopulated A chain of commits going back to v7.0 reworked rmdir to satisfy the controller invariant that a subsystem's -cssoffline must not run while tasks are still doin...