description: In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, while IPA WAN-driver is processing multiple requests from modem/user-space module, the global variable "num_q6_rule" does not have a mutex lock and thus can be accessed and modified by multiple threads.
problem types: Time-of-check Time-of-use (TOCTOU) Race Condition in Data
affected:
{
product: Android for MSM, Firefox OS for MSM, QRD Android
vendor: Qualcomm, Inc.
versions:
status: affected, version: All Android releases from CAF using the Linux kernel
}