CVE-2023-53298

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.

• linux linux kernel (>= 3.13 < 4.14.308) • linux linux kernel (>= 4.15 < 4.19.276) • linux linux kernel (>= 4.20 < 5.4.235) • linux linux kernel (>= 5.5 < 5.10.173) • linux linux kernel (>= 5.11 < 5.15.100) • linux linux kernel (>= 5.16 < 6.1.18) • linux linux kernel (>= 6.2 < 6.2.5)