Multiple race conditions in drivers/char/adsprpc.c and drivers/char/adsprpc_compat.c in the ADSPRPC driver for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, allow attackers to cause a denial of service (zero-value write) or possibly have unspecified other impact via a COMPAT_FASTRPC_IOCTL_INVOKE_FD ioctl call.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Link | Tags |
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https://source.codeaurora.org/quic/la/kernel/msm/commit/?id=8fb32c3a8147b82e2bb159b3f70d803c9e68899b | mailing list third party advisory patch |
http://www.securityfocus.com/bid/93312 | vdb entry third party advisory |
https://www.codeaurora.org/race-condition-leading-arbitrary-null-write-adsp-using-ioctl-compatfastrpcioctlinvokefd-cve-2015 | broken link |
http://source.android.com/security/bulletin/2016-10-01.html | patch vendor advisory |
https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=34ad3d34fbff11b8e1210b9da0dac937fb956b61 | mailing list third party advisory patch |