CVE-2022-50250: regulator: core: fix use_count leakage when handling boot-on
Noroxi assessment
Priority: Monitor (action score 22/100)
- 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: 0.16% (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 Linux 0591b14ce0398125439c759f889647369aa616a0, 4.19.270, 4b737246ff50f810d6ab4be13c1388a07f0c14b1.
Low priority for now. Upgrade to Linux Linux 0591b14ce0398125439c759f889647369aa616a0, 4.19.270, 4b737246ff50f810d6ab4be13c1388a07f0c14b1 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
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix use_count leakage when handling boot-on I found a use_count leakage towards supply regulator of rdev with boot-on option. ┌───────────────────┐ ┌───────────────────┐ │ regulator_dev A │ │ regulator_dev B │ │ (boot-on) │ │ (boot-on) │ │ use_count=0 │◀──supply──│ use_count=1 │ │ │ │ │ └───────────────────┘ └───────────────────┘ In case of rdev(A) configured with `regulator-boot-on', the use_count of supplying regulator(B) will increment inside regulator_enable(rdev->supply). Thus, B will acts like always-on, and further balanced regulator_enable/disable cannot actually disable it anymore. However, B was also configured with `regulator-boot-on', we wish it could be disabled afterwards.
- Published
- Sep 15, 2025
- Updated
- Nov 5, 2026
- EPSS
- 0.1% · 5th percentile
- CWE
- —
Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
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.
Is your version affected? Check itNoroxi 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.
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| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernelbefore 4.19.270
- linux linux kernel4.20 and later · before 5.4.229
- linux linux kernel5.5 and later · before 5.10.163
- linux linux kernel5.11 and later · before 5.15.86
- linux linux kernel5.16 and later · before 6.0.16
- linux linux kernel6.1 and later · before 6.1.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 5.5affected
- dc1b1d7faf616ed663d0bba9be5abb4d1ed35d01 and later · before dc3391d49479bc2bf8a2b88dbf86fdd800882feeaffected · git
- f44b07472f29ae313ce875dc7b9c75b100c608b8 and later · before 5bfc53df288e8ea54ca6866fb92034214940183faffected · git
- 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b and later · before 4b737246ff50f810d6ab4be13c1388a07f0c14b1affected · git
- 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b and later · before feb847e6591e8c7a09cc39721cc9ca74fd9a5d80affected · git
- 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b and later · before 4dd6e1cc9c7403f1ee1b7eee85bc31b797ae8347affected · git
- 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b and later · before bc6c381df5793ebcf32db88a3e65acf7870379fcaffected · git
- 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b and later · before 0591b14ce0398125439c759f889647369aa616a0affected · git
- 4.19.226 and later · before 4.19.270affected · semver
- 5.4.7 and later · before 5.4.229affected · semver
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 6.1.4-1 | 6.1.4-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-64kb | before 5.14.21-150400.24.179.1 | 5.14.21-150400.24.179.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-docs | before 5.14.21-150400.24.179.1 | 5.14.21-150400.24.179.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-obs-build | before 5.14.21-150400.24.179.1 | 5.14.21-150400.24.179.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | before 5.14.21-150400.24.179.1 | 5.14.21-150400.24.179.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-syms | before 5.14.21-150400.24.179.1 | 5.14.21-150400.24.179.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-64kb | before 5.14.21-150500.55.124.1 | 5.14.21-150500.55.124.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-docs | before 5.14.21-150500.55.124.1 | 5.14.21-150500.55.124.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-obs-build | before 5.14.21-150500.55.124.1 | 5.14.21-150500.55.124.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-syms | before 5.14.21-150500.55.124.1 | 5.14.21-150500.55.124.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_45 | before 1-150400.9.3.1 | 1-150400.9.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_31 | before 1-150500.11.3.1 | 1-150500.11.3.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-default | before 5.14.21-150400.24.179.1 | 5.14.21-150400.24.179.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-default-base | before 5.14.21-150400.24.179.1.150400.24.92.1 | 5.14.21-150400.24.179.1.150400.24.92.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-rt | before 5.14.21-150400.15.133.1 | 5.14.21-150400.15.133.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-source-rt | before 5.14.21-150400.15.133.1 | 5.14.21-150400.15.133.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default | before 5.14.21-150500.55.124.1 | 5.14.21-150500.55.124.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default-base | before 5.14.21-150500.55.124.1.150500.6.59.1 | 5.14.21-150500.55.124.1.150500.6.59.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-rt | before 5.14.21-150500.13.109.1 | 5.14.21-150500.13.109.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source | before 5.14.21-150500.55.124.1 | 5.14.21-150500.55.124.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source-rt | before 5.14.21-150500.13.109.1 | 5.14.21-150500.13.109.1 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-zfcpdump | before 5.14.21-150400.24.179.1 | 5.14.21-150400.24.179.1 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-zfcpdump | before 5.14.21-150500.55.124.1 | 5.14.21-150500.55.124.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- 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
Published before and after this one in the same product
- ← EarlierCVE-2022-50247Sep 15, 2025 · usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq22Monitor
- ← EarlierCVE-2022-50249Sep 15, 2025 · memory: of: Fix refcount leak bug in of_get_ddr_timings()22Monitor
- Later →CVE-2022-50252Sep 15, 2025 · igb: Do not free q_vector unless new one was allocated31Monitor
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 |
|---|---|---|
| Linux Linux | 0591b14ce0398125439c759f889647369aa616a0 | Vendor (CNA) |
| Linux Linux | 4.19.270 | Vendor (CNA) |
| Linux Linux | 4b737246ff50f810d6ab4be13c1388a07f0c14b1 | Vendor (CNA) |
| Linux Linux | 4dd6e1cc9c7403f1ee1b7eee85bc31b797ae8347 | Vendor (CNA) |
| Linux Linux | 5.4.229 | Vendor (CNA) |
| Linux Linux | 5bfc53df288e8ea54ca6866fb92034214940183f | Vendor (CNA) |
| Linux Linux | bc6c381df5793ebcf32db88a3e65acf7870379fc | Vendor (CNA) |
| Linux Linux | dc3391d49479bc2bf8a2b88dbf86fdd800882fee | Vendor (CNA) |
| Linux Linux | feb847e6591e8c7a09cc39721cc9ca74fd9a5d80 | Vendor (CNA) |
| debian:linux | 6.1.4-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.14.21-150500.55.124.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-default | 5.14.21-150500.55.124.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-docs | 5.14.21-150500.55.124.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP4_Update_45 | 1-150400.9.3.1 · SUSE:Linux Enterprise Live Patching 15 SP4 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP5_Update_31 | 1-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5 | Package registry (OSV) |
| suse:kernel-obs-build | 5.14.21-150500.55.124.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-rt | 5.14.21-150400.15.133.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-source | 5.14.21-150500.55.124.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-source-rt | 5.14.21-150400.15.133.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-syms | 5.14.21-150500.55.124.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.14.21-150500.55.124.1 · SUSE:Linux Enterprise Server 15 SP5-LTSS | Package registry (OSV) |
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.
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
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
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.
Change log
- SSVC exploitation— → none
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (6 more)Show less
- git.kernel.org/stable/c/4b737246ff50f810d6ab4be13c1388a07f0c14b1
- git.kernel.org/stable/c/4dd6e1cc9c7403f1ee1b7eee85bc31b797ae8347
- git.kernel.org/stable/c/5bfc53df288e8ea54ca6866fb92034214940183f
- git.kernel.org/stable/c/bc6c381df5793ebcf32db88a3e65acf7870379fc
- git.kernel.org/stable/c/dc3391d49479bc2bf8a2b88dbf86fdd800882fee
- git.kernel.org/stable/c/feb847e6591e8c7a09cc39721cc9ca74fd9a5d80
Vendor advisories and official records. Exploit/PoC links are deliberately left out.