Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix the error "trying to register non-static key in rxe_cleanup_task" In the function rxe_create_qp(), rxe_qp_from_init() is called to initialize qp, internally things like rxe_init_task are not setup until rxe_qp_init_req(). If an error occurred before this point then the unwind will call rxe_cleanup() and eventually to rxe_qp_do_cleanup()/rxe_cleanup_task() which will oops when trying to access the uninitialized spinlock. If rxe_init_task is not executed, rxe_cleanup_task will not be called.

References 4

• git.kernel.org https://git.kernel.org/stable/c/0d938264fcfe4927e54f0e519da05af1d5d720b4
• git.kernel.org https://git.kernel.org/stable/c/3236221bb8e4de8e3d0c8385f634064fb26b8e38
• git.kernel.org https://git.kernel.org/stable/c/b2b1ddc457458fecd1c6f385baa9fbda5f0c63ad
• git.kernel.org https://git.kernel.org/stable/c/c8473cd5b301279a41dc75e5afb26b3d5223b6c7

Remediation