The MSM QDSP6 audio driver (aka sound driver) for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, allows attackers to gain privileges or cause a denial of service (integer overflow, and buffer overflow or buffer over-read) via a crafted application that performs a (1) AUDIO_EFFECTS_WRITE or (2) AUDIO_EFFECTS_READ operation, aka Qualcomm internal bug CR1006609.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.18/commit/?id=2c04c0dab66013b7dfbe4d5a523c2c1d6b5b11d6 | mailing list third party advisory patch |
| http://source.android.com/security/bulletin/2016-07-01.html | patch vendor advisory |
| https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.10/commit/?id=9900650540c889f761d102202bc80306ae80ab83 | mailing list third party advisory patch |
| https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=01ee86da5a0cd788f134e360e2be517ef52b6b00 | mailing list third party advisory patch |
| https://www.codeaurora.org/multiple-vulnerabilities-msm-qdsp6-audio-driver-allow-kernel-memory-corruption-cve-2016-2068-0 | broken link |