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
Linux kernel Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 4.6 | Affected | — |
| — | Affected | 3.10.102 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.6.1-1 |
| sid | Fixed | 4.6.1-1 |
| forky | Fixed | 4.6.1-1 |
| bullseye | Fixed | 4.6.1-1 |
| bookworm | Fixed | 4.6.1-1 |
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.