CVE-2017-5577
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 4.9.6-1 |
| debian | bullseye | fixed | 4.9.6-1 |
| debian | forky | fixed | 4.9.6-1 |
| debian | sid | fixed | 4.9.6-1 |
| debian | trixie | fixed | 4.9.6-1 |
| linux-kernel | affected | |
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
- http://www.securityfocus.com/bid/95765
- https://bugzilla.redhat.com/show_bug.cgi?id=1416437
- https://github.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d9
- https://lkml.org/lkml/2017/1/17/759
- https://security-tracker.debian.org/tracker/CVE-2017-5577
CWEs
CWE-388
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.