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Release of Invalid Pointer or Reference

CVE-2024-42132

High
7.1/10

Summary

In the Linux kernel, the following vulnerability has been resolved: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX Syzbot hit warning in hci_conn_del() caused by freeing handle that was not allocated using ida allocator. This is caused by handle bigger than HCI_CONN_HANDLE_MAX passed by hci_le_big_sync_established_evt(), which makes code think it's unset connection. Add same check for handle upper bound as in hci_conn_set_handle() to prevent warning.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • NONE
  • LOW
  • NONE
  • HIGH

CWE-763 - Release of Invalid Pointer or Reference

The application attempts to return a memory resource to the system, but calls the wrong release function or calls the appropriate release function incorrectly.

References

Advisory Timeline

  • Published