The vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver...
Vulnerability Description
The vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver in the Linux kernel before 4.9.7 does not set an errno value upon certain overflow detections, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) via inconsistent size values in a VC4_SUBMIT_CL ioctl call.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.openwall.com/lists/oss-security/2017/01/21/7
- http://www.securityfocus.com/bid/95765
- https://github.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d9
- https://lkml.org/lkml/2017/1/17/759
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7
- https://bugzilla.redhat.com/show_bug.cgi?id=1416437
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b8ac63847bc2f958dd93c09edc941a0118992d9
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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