CVE-2023-53298

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.

PUBLISHED Reserved 2025-09-16 | Published 2025-09-16 | Updated 2025-09-16 | Assigner Linux

Product status

References

git.kernel.org/...c/5321da6d84b87a34eea441677d649c34bd854169

git.kernel.org/...c/af452e35b9e6a87cd49e54a7a3d60d934b194651

git.kernel.org/...c/271eed1736426103335c5aac50f15b0f4d236bc0

git.kernel.org/...c/8978315cb4bf8878c9c8ec05dafd8f7ff539860d

git.kernel.org/...c/c494365432dcdc549986f4d9af9eb6190cbdb153

git.kernel.org/...c/b2036a252381949d3b743a3de069324ae3028a57

git.kernel.org/...c/ba98db08895748c12e5ded52cd1598dce2c79e55

git.kernel.org/...c/25ff6f8a5a3b8dc48e8abda6f013e8cc4b14ffea

cve.org (CVE-2023-53298)

nvd.nist.gov (CVE-2023-53298)

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