CVE-2021-47345

MEDIUM

Linux Kernel < 4.4.276 - Use-After-Free in RDMA/cma

Title source: llm
STIX 2.1

Description

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.

References (9)

Core 9

Scores

CVSS v3 5.5
EPSS 0.0026
EPSS Percentile 17.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (21)
Linux/Linux < 2.6.18
Linux/Linux 2.6.18
Linux/Linux 4.14.240 - 4.14.*
Linux/Linux 4.19.198 - 4.19.*
Linux/Linux 4.4.276 - 4.4.*
Linux/Linux 4.9.276 - 4.9.*
Linux/Linux 5.10.51 - 5.10.*
Linux/Linux 5.12.18 - 5.12.*
Linux/Linux 5.13.3 - 5.13.*
Linux/Linux 5.14
... and 11 more
Published May 21, 2024
Tracked Since Feb 18, 2026