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.
References (7)
Core 7
Core References
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2017/01/21/7
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/95765
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d9
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
https://lkml.org/lkml/2017/1/17/759
Release Notes, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7
Issue Tracking, Patch x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1416437
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b8ac63847bc2f958dd93c09edc941a0118992d9
Scores
CVSS v3
5.5
EPSS
0.0004
EPSS Percentile
12.0%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-388
Status
published
Products (1)
linux/linux_kernel
< 4.9.6
Published
Feb 06, 2017
Tracked Since
Feb 18, 2026