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The Android kernel mitigations obstacle race

A great article by Man Yue Mo about exploiting a race condition that leads to a use-after-free vulnerability in the Qualcomm GPU driver for Samsung Galaxy Z Flip3.

The researcher widened the race window to hit the bug reliably, and then bypassed kCFI, automatic variable initialization, and Samsung RKP in the exploit.
The GitHub Blog The Android kernel mitigations obstacle race In this post I’ll exploit CVE-2022-22057, a use-after-free in the Qualcomm gpu kernel driver, to gain root and disable SELinux from the untrusted app sandbox on a Samsung Z flip 3. I’ll look at various mitigations that are implemented on modern Android devices…
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