CVE-2021-47345

low-risk

Published 2024-05-21

In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Fix rdma_resolve_route() memory leak Fix a memory leak when "mda_resolve_route() is called more than once on the same "rdma_cm_id". This is possible if cma_query_handler() triggers the RDMA_CM_EVENT_ROUTE_ERROR flow which puts the state machine back and allows rdma_resolve_route() to be called again.

Do I need to act?

0.01% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Linux Kernel

Affected Vendors

Linux

References (18)

Patch https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972

Patch https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885ac

Patch https://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6

Patch https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0b

Patch https://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198f

Patch https://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9

Patch https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a

Patch https://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8

Patch https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939