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A 0-click exploit chain for the Pixel 9 Part 2: Cracking the Sandbox with a Big Wave
Pixel 9 sandbox escape demonstrates kernel driver exploitation from constrained mediacodec contexts in Android.
Summary written by editorial AI · Source link below
With the advent of a potential Dolby Unified Decoder RCE exploit, it seemed prudent to see what kind of Linux kernel drivers might be accessible from the resulting userland context, the mediacodec context. As per the AOSP documentation, the mediacodec SELinux context is intended to be a constrained (a.k.a sandboxed) context where non-secure software decoders are utilized. Nevertheless, using my DriverCartographer tool, I discovered an interesting device driver, /dev/bigwave that was accessible f
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