CVE-2021-47345

MEDIUM

Linux Kernel < 4.4.276 - Memory Leak

Title source: rule

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)

[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

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 0.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-401

Status published

Affected Products (1)

linux/linux_kernel < 4.4.276

Timeline

Published May 21, 2024

Tracked Since Feb 18, 2026