The futex_requeue function in kernel/futex.c in the Linux kernel through 3.14.5 does not ensure that calls have two different futex addresse
The futex_requeue function in kernel/futex.c in the Linux kernel through 3.14.5 does not ensure that calls have two different futex addresses, which allows local users to gain privileges via a crafted FUTEX_REQUEUE command that facilitates unsafe waiter modification.
- Published
- Jun 7, 2014
- Updated
- Jun 16, 2026
- EPSS
- 37.2% · 98th percentile
- CWE
- —
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Report tools
Action score
72
This week
Don’t wait for the next maintenance window.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 30 / 30 · Listed
- EPSS
- 11 / 30 · 37.2%
CISA SSVC decision
- Exploitation
- active
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Actively exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on May 25, 2022. That signals real attacks, not theory.
Remediation deadline for government agencies: Jun 15, 2022.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| opensuse | opensuse | cpe:2.3:o:opensuse:opensuse |
| suse | linux enterprise desktop | cpe:2.3:o:suse:linux_enterprise_desktop |
| suse | linux enterprise high availability extension | cpe:2.3:o:suse:linux_enterprise_high_availability_extension |
| suse | linux enterprise real time extension | cpe:2.3:o:suse:linux_enterprise_real_time_extension |
| suse | linux enterprise server | cpe:2.3:o:suse:linux_enterprise_server |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| oracle | linux | cpe:2.3:o:oracle:linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux12.04
- canonical ubuntu linux14.04
- linux linux kernelbefore 3.2.60
- linux linux kernel3.11 and later · before 3.12.22
- linux linux kernel3.13 and later · before 3.14.6
- linux linux kernel3.5 and later · before 3.10.42
- linux linux kernel3.3 and later · before 3.4.92
- opensuse opensuse11.4
- oracle linux5
- oracle linux6
- redhat enterprise linux server aus6.2
- suse linux enterprise desktop11
- suse linux enterprise high availability extension11
- suse linux enterprise real time extension11
- suse linux enterprise server11
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 3.14.5-1 | 3.14.5-1 |
| Debian:6.0 | linux-2.6 | before 2.6.32-48squeeze7 | 2.6.32-48squeeze7 |
| Debian:7 | linux | before 3.2.57-3+deb7u2 | 3.2.57-3+deb7u2 |
| Red Hat:enterprise_linux:6::client | kernel | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-abi-whitelists | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug-debuginfo | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug-devel | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo-common-i686 | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo-common-x86_64 | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-devel | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-doc | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-firmware | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-headers | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | perf | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | perf-debuginfo | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | python-perf | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::client | python-perf-debuginfo | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-bootwrapper | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-debuginfo-common-ppc64 | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-debuginfo-common-s390x | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump-debuginfo | before 0:2.6.32-431.20.3.el6 | 0:2.6.32-431.20.3.el6 |
+75
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Debian:linux | 3.14.5-1 · Debian:12 | Package registry (OSV) |
| Debian:linux-2.6 | 2.6.32-48squeeze7 · Debian:6.0 | Package registry (OSV) |
| Red Hat:kernel | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-abi-whitelists | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-debug | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-debug-debuginfo | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-debug-devel | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-debuginfo | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-debuginfo-common-i686 | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-debuginfo-common-x86_64 | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-devel | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-doc | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-firmware | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| Red Hat:kernel-headers | 0:2.6.32-431.20.3.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
- Exploit-DB entry ×1
- Proof-of-concept repository on GitHub ×9
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | local | 2014-11-25 |
| Metasploit module | exploit/android/local/futex_requeueAndroid 'Towelroot' Futex Requeue Kernel Exploitexploit | 2014-05-03 |
| Proof-of-concept repository on GitHub | stars:124 | 2014-07-24 |
| Proof-of-concept repository on GitHub | stars:19 | 2014-09-13 |
| Proof-of-concept repository on GitHub | stars:46 | 2014-09-20 |
| Proof-of-concept repository on GitHub | stars:18 | 2015-01-12 |
| Proof-of-concept repository on GitHub | stars:5 | 2015-11-08 |
| Proof-of-concept repository on GitHub | stars:0 | 2016-05-29 |
| Proof-of-concept repository on GitHub | stars:20 | 2018-09-27 |
| Proof-of-concept repository on GitHub | stars:13 | 2020-10-31 |
| Proof-of-concept repository on GitHub | stars:0 | 2022-02-01 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-35 d
- Published
- First PoC+47 d
- CISA KEV+2909 d
- TodaySep 30, 2026+4498 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e9c243a5a6de0be8e584c604d353412584b592f8
- linux.oracle.com/errata/ELSA-2014-0771.html
- linux.oracle.com/errata/ELSA-2014-3037.html
- linux.oracle.com/errata/ELSA-2014-3038.html
- linux.oracle.com/errata/ELSA-2014-3039.html
- lists.opensuse.org/opensuse-security-announce/2014-06/msg00014.html
- lists.opensuse.org/opensuse-security-announce/2014-06/msg00018.html
- lists.opensuse.org/opensuse-security-announce/2014-06/msg00025.html
- lists.opensuse.org/opensuse-security-announce/2014-07/msg00006.html
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
- openwall.com/lists/oss-security/2014/06/05/24
- openwall.com/lists/oss-security/2014/06/06/20
- rhn.redhat.com/errata/RHSA-2014-0800.html
- secunia.com/advisories/58500
- secunia.com/advisories/58990
- secunia.com/advisories/59029
- secunia.com/advisories/59092
- secunia.com/advisories/59153
- secunia.com/advisories/59262
Vendor advisories and official records. Exploit/PoC links are deliberately left out.