CVE-2016-5340

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-08-07 · updated 2026-06-17
Weakness: CWE-20

Description

The is_ashmem_file function in drivers/staging/android/ashmem.c in a certain Qualcomm Innovation Center (QuIC) Android patch for the Linux kernel 3.x mishandles pointer validation within the KGSL Linux Graphics Module, which allows attackers to bypass intended access restrictions by using the /ashmem string as the dentry name.

Affected products

Android: through 7.0
Linux kernel: from 3.0 through 3.19.8

References

http://source.android.com/security/bulletin/2016-10-01.html
http://www.securityfocus.com/bid/92374
http://www.securitytracker.com/id/1036763
https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=06e51489061e5473b4e2035c79dcf7c27a6f75a6
https://www.codeaurora.org/invalid-path-check-ashmem-memory-file-cve-2016-5340
http://source.android.com/security/bulletin/2016-10-01.html
http://www.securityfocus.com/bid/92374
http://www.securitytracker.com/id/1036763
https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=06e51489061e5473b4e2035c79dcf7c27a6f75a6
https://www.codeaurora.org/invalid-path-check-ashmem-memory-file-cve-2016-5340

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