CVE-2016-9754
high
CVSS v3
7.8
CVSS v4 NEW
—
VIR risk
7.8
Description
The ring_buffer_resize function in kernel/trace/ring_buffer.c in the profiling subsystem in the Linux kernel before 4.6.1 mishandles certain integer calculations, which allows local users to gain privileges by writing to the /sys/kernel/debug/tracing/buffer_size_kb file.
Predictions
Exploit likelihood
75%
Patch ETA
—
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 |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.6.1-1 |
| debian | bullseye | fixed | 4.6.1-1 |
| debian | forky | fixed | 4.6.1-1 |
| debian | sid | fixed | 4.6.1-1 |
| debian | trixie | fixed | 4.6.1-1 |
| linux-kernel | affected | 3.10.102 | |
| linux-kernel | 4.6 | affected | |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59643d1535eb220668692a5359de22545af579f6
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1
- http://www.securityfocus.com/bid/95278
- https://github.com/torvalds/linux/commit/59643d1535eb220668692a5359de22545af579f6
- https://source.android.com/security/bulletin/2017-01-01.html
- https://www.suse.com/security/cve/CVE-2016-9754.html
- https://security-tracker.debian.org/tracker/CVE-2016-9754
CWEs
CWE-190
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.