CVE-2022-48934

MEDIUM

Linux Kernel - Use-After-Free in nfp_tunnel_add_shared_mac

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac() ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX) inclusive. So NFP_MAX_MAC_INDEX (0xff) is a valid id. In order for the error handling path to work correctly, the 'invalid' value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range, inclusive. So set it to -1.

References (5)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0021
EPSS Percentile 11.0%
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 (17)
linux/Kernel 5.1.0 - 5.4.182linux
linux/Kernel 5.11.0 - 5.15.26linux
linux/Kernel 5.16.0 - 5.16.12linux
linux/Kernel 5.5.0 - 5.10.103linux
Linux/Linux < 5.1
Linux/Linux 20cce88650981ec504d328dbbdd004d991eb8535 - 3a14d0888eb4b0045884126acc69abfb7b87814d
Linux/Linux 20cce88650981ec504d328dbbdd004d991eb8535 - 4086d2433576baf85f0e538511df97c8101e0a10
Linux/Linux 20cce88650981ec504d328dbbdd004d991eb8535 - 5ad5886f85b6bd893e3ed19013765fb0c243c069
Linux/Linux 20cce88650981ec504d328dbbdd004d991eb8535 - 9d8097caa73200710d52b9f4d9f430548f46a900
Linux/Linux 20cce88650981ec504d328dbbdd004d991eb8535 - af4bc921d39dffdb83076e0a7eed1321242b7d87
... and 7 more
Published Aug 22, 2024
Tracked Since Feb 18, 2026