CVE-2023-53298

MEDIUM

Linux Kernel 3.13-4.14.308 - Use-After-Free in NFC Secure Element I/O Context

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: fix memory leak of se_io context in nfc_genl_se_io The callback context for sending/receiving APDUs to/from the selected secure element is allocated inside nfc_genl_se_io and supposed to be eventually freed in se_io_cb callback function. However, there are several error paths where the bwi_timer is not charged to call se_io_cb later, and the cb_context is leaked. The patch proposes to free the cb_context explicitly on those error paths. At the moment we can't simply check 'dev->ops->se_io()' return value as it may be negative in both cases: when the timer was charged and was not.

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 3.3%
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 (19)
Linux/Linux < 3.13
Linux/Linux 3.13
Linux/Linux 4.14.308 - 4.14.*
Linux/Linux 4.19.276 - 4.19.*
Linux/Linux 5.10.173 - 5.10.*
Linux/Linux 5.15.100 - 5.15.*
Linux/Linux 5.4.235 - 5.4.*
Linux/Linux 5ce3f32b5264b337bfd13a780452a17705307725 - 25ff6f8a5a3b8dc48e8abda6f013e8cc4b14ffea
Linux/Linux 5ce3f32b5264b337bfd13a780452a17705307725 - 271eed1736426103335c5aac50f15b0f4d236bc0
Linux/Linux 5ce3f32b5264b337bfd13a780452a17705307725 - 5321da6d84b87a34eea441677d649c34bd854169
... and 9 more
Published Sep 16, 2025
Tracked Since Feb 18, 2026