Description
The treo_attach function in drivers/usb/serial/visor.c in the Linux kernel before 4.5 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by inserting a USB device that lacks a (1) bulk-in or (2) interrupt-in endpoint.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.4.2-1 | — |
| Debian 13 | linux | 4.4.2-1 | — |
| Debian 12 | linux | 4.4.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-riscv +6 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +4 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +3 | No fix yet | — |
| Ubuntu 14.04 LTS | linux | 3.13.0-83.127 | USN-2929-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-69.89~14.04.1 | USN-2948-1 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-56.62~14.04.1 | USN-2932-1 |
| Ubuntu 14.04 LTS | linux-lts-wily | 4.2.0-34.39~14.04.1 | USN-2930-2 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-docs | 3.12.57-60.35.3 | SUSE-SU-2016:1019-1 |
| SLES 12 SP1 | kernel-xen +4 | 3.12.57-60.35.1 | SUSE-SU-2016:1019-1 |
| SLES 12 | kernel-docs | 3.12.60-52.49.3 | SUSE-SU-2016:1690-1 |
| SLES 12 | kernel-ec2 | 3.12.57-60.35.1 | SUSE-SU-2016:1690-1, SUSE-SU-2016:1019-1 |
| SLES 12 | kernel-xen +4 | 3.12.60-52.49.1 | SUSE-SU-2016:1690-1 |
| SLES 11 SP4 | kernel-docs | 3.0.101-77.2 | SUSE-SU-2016:1672-1 |
| SLES 11 SP4 | kernel-ec2 +7 | 3.0.101-77.1 | SUSE-SU-2016:1672-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
| SLES 11 SP2 | kernel-ec2 +6 | 3.0.101-0.7.40.1 | SUSE-SU-2016:2074-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.57-60.35.1 | SUSE-SU-2016:1019-1 |
| SLES for SAP 12 | kernel-xen +3 | 3.12.60-52.49.1 | SUSE-SU-2016:1690-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +7 | 3.0.101-77.1 | SUSE-SU-2016:1672-1 |
| SLE Real Time 12 SP1 | kernel-rt +5 | 3.12.58-14.1 | SUSE-SU-2016:1764-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-54.1 | SUSE-SU-2016:1707-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_4 | 1-2.3 | SUSE-SU-2016:1019-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_14 | 1-2.1 | SUSE-SU-2016:1690-1 |
| SUSE OpenStack Cloud 5 | kernel-ec2 +6 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
| SUSE Manager Proxy 2.1 | kernel-ec2 +6 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
| SUSE Manager 2.1 | kernel-ec2 +6 | 3.0.101-0.47.79.1 | SUSE-SU-2016:1203-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.18.2.el6uek | 0.4.5-3.el6 | ELSA-2017-3566 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.18.2.el7uek | 0.4.5-3.el7 | ELSA-2017-3566 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.18.2.el7uek | ELSA-2017-3566 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - visor 'treo_attach' Nullpointer Dereference EDB-39539 · dos · Mar 9, 2016
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 13
- USN-2929-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-2930-2 linux-lts-wily vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2932-1 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2948-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:1672-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1764-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1707-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2074-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1203-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1019-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2016:1690-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-0150 Linux Kernel: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jan 17, 2024
- ELSA-2017-3566 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 16, 2017
References
- SUSE-SU-2016:1690 vendor-advisory
- USN-2930-1 vendor-advisory
- USN-2967-1 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cac9b50b0d75a1d50d6c056ff65c005f3224c8e0
- https://github.com/torvalds/linux/commit/cac9b50b0d75a1d50d6c056ff65c005f3224c8e0
- USN-2930-2 vendor-advisory
- 39539 exploit
- USN-2967-2 vendor-advisory
- SUSE-SU-2016:1764 vendor-advisory
- USN-2930-3 vendor-advisory
- [oss-security] 20160228 Re: CVE request -- linux kernel: visor: crash on invalid USB device descriptors in treo_attach() in visor driver mailing-list
- SUSE-SU-2016:1707 vendor-advisory
- SUSE-SU-2016:1672 vendor-advisory
- SUSE-SU-2016:1019 vendor-advisory
- USN-2929-1 vendor-advisory
- USN-2932-1 vendor-advisory
- SUSE-SU-2016:2074 vendor-advisory
- USN-2948-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1312670
- USN-2929-2 vendor-advisory
- USN-2948-2 vendor-advisory