A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget
Noroxi assessment
Priority: Monitor (action score 17/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.51% (FIRST EPSS).
- 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.
- Fixed version: linux (Debian:12) 5.15.5-1; linux (Debian:9) 4.9.303-1; dtb-aarch64 (openSUSE:Leap 15.3) 5.3.18-59.40.1.
- Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to linux (Debian:12) 5.15.5-1; linux (Debian:9) 4.9.303-1; dtb-aarch64 (openSUSE:Leap 15.3) 5.3.18-59.40.1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
- BDU:2022-05692
- DLA-2940-1
- openSUSE-SU-2022:0056-1
- openSUSE-SU-2022:0131-1
- openSUSE-SU-2022:0366-1
- RHSA-2022:1975
- RLSA-2022:1975
- RLSA-2022:1988
- SUSE-SU-2022:0056-1
- SUSE-SU-2022:0068-1
- SUSE-SU-2022:0079-1
- SUSE-SU-2022:0080-1
- SUSE-SU-2022:0090-1
- SUSE-SU-2022:0131-1
- SUSE-SU-2022:0181-1
- SUSE-SU-2022:0197-1
- SUSE-SU-2022:0362-1
- SUSE-SU-2022:0366-1
- SUSE-SU-2022:0367-1
- SUSE-SU-2022:0371-1
- Published
- Mar 3, 2022
- Updated
- Jun 17, 2026
- EPSS
- 0.5% · 42th percentile
- CWE
- CWE-459
Report tools
Action score
17
Monitor
Low priority for now.
- CVSS
- 17 / 40 · 4.4 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Running WordPress? Scan your site free with WP Lens
Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| oracle | communications cloud native core binding support function | cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function |
| oracle | communications cloud native core network exposure function | cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function |
| oracle | communications cloud native core policy | cpe:2.3:a:oracle:communications_cloud_native_core_policy |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux10.0
- debian debian linux9.0
- fedoraproject fedora35
- linux linux kernelbefore 5.16
- linux linux kernel5.16
- oracle communications cloud native core binding support function22.1.3
- oracle communications cloud native core network exposure function22.1.1
- oracle communications cloud native core policy22.2.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
n/a kernel
- affects kernel v3.6 and later through v5.15.5.affected
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 5.15.5-1 | 5.15.5-1 |
| Debian:9 | linux | before 4.9.303-1 | 4.9.303-1 |
| openSUSE:Leap 15.3 | dtb-aarch64 | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-64kb | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-azure | before 5.3.18-38.34.1 | 5.3.18-38.34.1 |
| openSUSE:Leap 15.3 | kernel-debug | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-debug | before 4.12.14-197.105.1 | 4.12.14-197.105.1 |
| openSUSE:Leap 15.3 | kernel-default | before 4.12.14-197.105.1 | 4.12.14-197.105.1 |
| openSUSE:Leap 15.3 | kernel-default | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-default-base | before 5.3.18-59.40.1.18.25.1 | 5.3.18-59.40.1.18.25.1 |
| openSUSE:Leap 15.3 | kernel-docs | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-kvmsmall | before 4.12.14-197.105.1 | 4.12.14-197.105.1 |
| openSUSE:Leap 15.3 | kernel-kvmsmall | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-obs-build | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-obs-qa | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-preempt | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-source | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-source-azure | before 5.3.18-38.34.1 | 5.3.18-38.34.1 |
| openSUSE:Leap 15.3 | kernel-syms | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| openSUSE:Leap 15.3 | kernel-syms-azure | before 5.3.18-38.34.1 | 5.3.18-38.34.1 |
| openSUSE:Leap 15.3 | kernel-vanilla | before 4.12.14-197.105.1 | 4.12.14-197.105.1 |
| openSUSE:Leap 15.3 | kernel-zfcpdump | before 4.12.14-197.105.1 | 4.12.14-197.105.1 |
| openSUSE:Leap 15.3 | kernel-zfcpdump | before 5.3.18-59.40.1 | 5.3.18-59.40.1 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt | before 0:4.18.0-372.9.1.rt7.166.el8 | 0:4.18.0-372.9.1.rt7.166.el8 |
+86
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
Published before and after this one in the same product
- ← EarlierCVE-2021-3609Mar 3, 2022 · .A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to co28Monitor
- ← EarlierCVE-2022-0492Mar 3, 2022 · A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function.KEV63This week
- Later →CVE-2021-3640Mar 3, 2022 · A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER 28Monitor
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 | 5.15.5-1 · Debian:12 | Package registry (OSV) |
| opensuse:connman | 1.41-bp153.2.3.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:dtb-aarch64 | 5.3.18-59.40.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-64kb | 5.3.18-59.40.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-azure | 5.3.18-38.34.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-debug | 5.3.18-59.40.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-default | 5.3.18-59.40.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-default-base | 5.3.18-59.40.1.18.25.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-docs | 5.3.18-59.40.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 5.3.18-59.40.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-source-azure | 5.3.18-38.34.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-syms-azure | 5.3.18-38.34.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| red hat:kernel-rt | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-core | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-core | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-debuginfo | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-devel | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-kvm | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules-extra | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo-common-x86_64 | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-devel | 0:4.18.0-372.9.1.rt7.166.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| rocky linux:kernel | 0:4.18.0-372.9.1.el8 · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:kernel-rt | 0:4.18.0-372.9.1.rt7.166.el8 · Rocky Linux:8 | Package registry (OSV) |
| suse:connman | 1.41-bp153.2.3.1 · SUSE:Package Hub 15 SP3 | Package registry (OSV) |
| suse:kernel-azure | 5.3.18-38.34.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP3 | Package registry (OSV) |
| suse:kernel-default | 4.12.14-122.106.1 · SUSE:Linux Enterprise High Availability Extension 12 SP5 | Package registry (OSV) |
| suse:kernel-docs | 4.12.14-122.106.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5 | Package registry (OSV) |
+9
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-22-0474 · Jul 4, 2022(RedHat Güvenlik Güncellemesi)
- TR-22-0197 · Mar 4, 2022(Linux Kernel Zafiyeti)
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
- low · data can be read
- Integrity
- low · data or configuration can be modified
- Availability
- none
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-459 · Incomplete CleanupCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
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.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (6 more)Show less
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=13e4ad2ce8df6e058ef482a31fdd81c725b0f7ea
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4a118f2eead1d6c49e00765de89878288d4b890
- lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- www.debian.org/security/2022/dsa-5096
- www.oracle.com/security-alerts/cpujul2022.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.