CVE-2026-53327

Description

In the Linux kernel, the following vulnerability has been resolved: debugobjects: Do not fill_pool() if pi_blocked_on On RT enabled kernels, fill_pool() ends up calling rtlock_lock(), which asserts if current::pi_blocked_on is set, because a task can obviously only block on one lock as otherwise the priority inheritenace chain gets corrupted. Prevent this by expanding the conditional to take current::pi_blocked_on into account.

References

• https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72
• https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863
• https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb