CVE-2017-5577
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b8ac63847bc2f958dd93c09edc941a0118992d9
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7
- http://www.openwall.com/lists/oss-security/2017/01/21/7
- https://bugzilla.redhat.com/show_bug.cgi?id=1416437
- https://github.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d9
References (7)
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