5.5

CVE-2023-53298

nfc: fix memory leak of se_io context in nfc_genl_se_io

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.13 < 4.14.308
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.276
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.235
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.173
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.100
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.18
Linux ≫ Linux Kernel Version >= 6.2 < 6.2.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.041
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.