A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
- BDU:2022-01472
- ALSA-2022:0188
- DSA-5050-1
- openSUSE-SU-2022:0169-1
- openSUSE-SU-2022:0198-1
- openSUSE-SU-2024:11775-1
- RHSA-2022:0176
- RHSA-2022:0186
- RHSA-2022:0187
- RHSA-2022:0188
- RHSA-2022:0231
- RHSA-2022:0232
- RHSA-2022:0540
- RLSA-2022:0176
- RLSA-2022:0188
- SUSE-SU-2022:0169-1
- SUSE-SU-2022:0198-1
- SUSE-SU-2022:0238-1
- SUSE-SU-2022:0239-1
- SUSE-SU-2022:0241-1
- Published
- Feb 11, 2022
- Updated
- Jun 17, 2026
- EPSS
- 25.2% · 98th percentile
- CWE
- CWE-190
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Report tools
Action score
71
This week
Don’t wait for the next maintenance window.
- CVSS
- 33 / 40 · 8.4 / 10
- CISA KEV
- 30 / 30 · Listed
- EPSS
- 8 / 30 · 25.2%
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 Aug 21, 2024. That signals real attacks, not theory.
Remediation deadline for government agencies: Sep 11, 2024.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; 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 helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| netapp | h410c firmware | cpe:2.3:o:netapp:h410c_firmware |
| netapp | h410c | cpe:2.3:h:netapp:h410c |
| netapp | h300s firmware | cpe:2.3:o:netapp:h300s_firmware |
| netapp | h300s | cpe:2.3:h:netapp:h300s |
| netapp | h500s firmware | cpe:2.3:o:netapp:h500s_firmware |
| netapp | h500s | cpe:2.3:h:netapp:h500s |
| netapp | h700s firmware | cpe:2.3:o:netapp:h700s_firmware |
| netapp | h700s | cpe:2.3:h:netapp:h700s |
| netapp | h300e firmware | cpe:2.3:o:netapp:h300e_firmware |
| netapp | h300e | cpe:2.3:h:netapp:h300e |
| netapp | h500e firmware | cpe:2.3:o:netapp:h500e_firmware |
and 5 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel5.16 and later · before 5.16.2
- linux linux kernel5.5 and later · before 5.10.93
- linux linux kernel5.11 and later · before 5.15.16
- linux linux kernel5.1 and later · before 5.4.173
- netapp h300e firmwareall versions
- netapp h300s firmwareall versions
- netapp h410c firmwareall versions
- netapp h410s firmwareall versions
- netapp h500e firmwareall versions
- netapp h500s firmwareall versions
- netapp h700e firmwareall versions
- netapp h700s firmwareall versions
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
- 8.4affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | kernel-tools-libs-devel | before 4.18.0-348.12.2.el8_5 | 4.18.0-348.12.2.el8_5 |
| Debian:11 | linux | before 5.10.92-1 | 5.10.92-1 |
| Debian:12 | linux | before 5.15.15-1 | 5.15.15-1 |
| openSUSE:Leap 15.3 | dtb-aarch64 | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-64kb | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-azure | before 5.3.18-150300.38.37.1 | 5.3.18-150300.38.37.1 |
| openSUSE:Leap 15.3 | kernel-debug | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-default | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-default-base | before 5.3.18-150300.59.43.1.150300.18.27.1 | 5.3.18-150300.59.43.1.150300.18.27.1 |
| openSUSE:Leap 15.3 | kernel-docs | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-kvmsmall | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-obs-build | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-obs-qa | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-preempt | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-source | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-source-azure | before 5.3.18-150300.38.37.1 | 5.3.18-150300.38.37.1 |
| openSUSE:Leap 15.3 | kernel-syms | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Leap 15.3 | kernel-syms-azure | before 5.3.18-150300.38.37.1 | 5.3.18-150300.38.37.1 |
| openSUSE:Leap 15.3 | kernel-zfcpdump | before 5.3.18-150300.59.43.1 | 5.3.18-150300.59.43.1 |
| openSUSE:Tumbleweed | kernel-source | before 5.16.2-1.1 | 5.16.2-1.1 |
| Red Hat:enterprise_linux:8::baseos | bpftool | before 0:4.18.0-348.12.2.el8_5 | 0:4.18.0-348.12.2.el8_5 |
| Red Hat:enterprise_linux:8::baseos | bpftool-debuginfo | before 0:4.18.0-348.12.2.el8_5 | 0:4.18.0-348.12.2.el8_5 |
| Red Hat:enterprise_linux:8::baseos | kernel | before 0:4.18.0-348.12.2.el8_5 | 0:4.18.0-348.12.2.el8_5 |
| Red Hat:enterprise_linux:8::baseos | kernel-abi-stablelists | before 0:4.18.0-348.12.2.el8_5 | 0:4.18.0-348.12.2.el8_5 |
+96
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 |
|---|---|---|
| almalinux:kernel-tools-libs-devel | 4.18.0-348.12.2.el8_5 · AlmaLinux:8 | Package registry (OSV) |
| debian:linux | 5.15.15-1 · Debian:12 | Package registry (OSV) |
| opensuse:dtb-aarch64 | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-64kb | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-azure | 5.3.18-150300.38.37.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-debug | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-default | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-default-base | 5.3.18-150300.59.43.1.150300.18.27.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-docs | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-obs-build | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-obs-qa | 5.3.18-150300.59.43.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-source-azure | 5.3.18-150300.38.37.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kernel-syms-azure | 5.3.18-150300.38.37.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| red hat:kernel-rt | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-core | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-core | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-debuginfo | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-devel | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-kvm | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules-extra | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo-common-x86_64 | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-devel | 0:4.18.0-348.12.2.rt7.143.el8_5 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| rocky linux:kernel | 0:4.18.0-348.12.2.el8_5 · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:kernel-rt | 0:4.18.0-348.12.2.rt7.143.el8_5 · Rocky Linux:8 | Package registry (OSV) |
| suse:kernel-64kb | 5.3.18-150300.59.43.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP3 | Package registry (OSV) |
| suse:kernel-azure | 5.3.18-150300.38.37.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP3 | Package registry (OSV) |
+10
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
- Proof-of-concept repository on GitHub ×10
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 |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:378 | 2022-01-19 |
| Proof-of-concept repository on GitHub | stars:5 | 2022-01-26 |
| Proof-of-concept repository on GitHub | stars:0 | 2022-01-27 |
| Proof-of-concept repository on GitHub | stars:37 | 2022-02-18 |
| Proof-of-concept repository on GitHub | stars:16 | 2022-04-05 |
| Proof-of-concept repository on GitHub | stars:3 | 2022-04-14 |
| Proof-of-concept repository on GitHub | stars:3 | 2024-04-15 |
| Proof-of-concept repository on GitHub | stars:0 | 2026-02-25 |
| Proof-of-concept repository on GitHub | stars:0 | 2026-03-04 |
| Proof-of-concept repository on GitHub | stars:0 | 2026-03-05 |
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.
- First PoC-24 d
- Published
- CISA KEV+921 d
- TodayOct 7, 2026+1699 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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-22-0222 · Mar 15, 2022(RedHat Güvenlik Güncellemesi)
- TR-22-0113 · Feb 4, 2022(RedHat Güvenlik Güncellemesi)
- TR-22-0092 · Jan 27, 2022(Linux Kernel Zafiyeti)
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-190 · Integer Overflow or WraparoundCVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/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.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2
- security.netapp.com/advisory/ntap-20220225-0003/
- www.openwall.com/lists/oss-security/2022/01/18/7
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185
Vendor advisories and official records. Exploit/PoC links are deliberately left out.