CVE-2022-49929

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Fix mr leak in RESPSTERRRNR

rxerecheckmr() will increase mr's refcnt, so we should call rxeput(mr) to drop mr's refcnt in RESPSTERR_RNR to avoid below warning:

WARNING: CPU: 0 PID: 4156 at drivers/infiniband/sw/rxe/rxepool.c:259 _rxecleanup+0x1df/0x240 [rdmarxe] ... Call Trace: rxederegmr+0x4c/0x60 [rdmarxe] ibderegmruser+0xa8/0x200 [ibcore] ibmrpooldestroy+0x77/0xb0 [ibcore] nvmerdmadestroyqueueib+0x89/0x240 [nvmerdma] nvmerdmafreequeue+0x40/0x50 [nvmerdma] nvmerdmateardownioqueues.part.0+0xc3/0x120 [nvmerdma] nvmerdmaerrorrecoverywork+0x4d/0xf0 [nvmerdma] processonework+0x582/0xa40 ? pwqdecnrinflight+0x100/0x100 ? rwlockbug.part.0+0x60/0x60 workerthread+0x2a9/0x700 ? processonework+0xa40/0xa40 kthread+0x168/0x1a0 ? kthreadcompleteandexit+0x20/0x20 retfrom_fork+0x22/0x30