CVE-2023-53298
MEDIUMLinux Kernel 3.13-4.14.308 - Use-After-Free in NFC Secure Element I/O Context
Title source: llmDescription
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.
References (8)
Core 8
Core References
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