Description
In all android releases (Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, userspace can request ION cache maintenance on a secure ION buffer for which the ION_FLAG_SECURE ion flag is not set and cause the kernel to attempt to perform cache maintenance on memory which does not belong to HLOS.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Qualcomm | Android for MSM, Firefox OS for MSM, QRD Android | All Android releases from CAF using the Linux kernel | — |
References
- https://www.codeaurora.org/security-bulletin/2018/09/04/september-2018-code-aurora-security-bulletin
- https://support.blackberry.com/kb/articleDetail?language=en_US&articleNumber=000049462
- https://source.codeaurora.org/quic/la/kernel/msm-4.4/commit/?id=09874396dfbf546e5a628d810fcf5ea51a4d5785
- https://source.codeaurora.org/quic/la/kernel/msm-4.9/commit/?id=53261410da625aaa2e070555aaa150a8533e5be4
- https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=3286b75d91519073d2f20bee85f22e294d5f1a18