CVE-2023-53298

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < 5321da6d84b87a34eea441677d649c34bd854169affected
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < af452e35b9e6a87cd49e54a7a3d60d934b194651affected
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < 271eed1736426103335c5aac50f15b0f4d236bc0affected
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < 8978315cb4bf8878c9c8ec05dafd8f7ff539860daffected
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < c494365432dcdc549986f4d9af9eb6190cbdb153affected
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < b2036a252381949d3b743a3de069324ae3028a57affected
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < ba98db08895748c12e5ded52cd1598dce2c79e55affected
LinuxLinux5ce3f32b5264b337bfd13a780452a17705307725 < 25ff6f8a5a3b8dc48e8abda6f013e8cc4b14ffeaaffected
LinuxLinux3.13affected
LinuxLinux0 < 3.13unaffected
LinuxLinux4.14.308 <= 4.14.*unaffected
LinuxLinux4.19.276 <= 4.19.*unaffected
LinuxLinux5.4.235 <= 5.4.*unaffected
LinuxLinux5.10.173 <= 5.10.*unaffected
LinuxLinux5.15.100 <= 5.15.*unaffected
LinuxLinux6.1.18 <= 6.1.*unaffected
LinuxLinux6.2.5 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References