CVE-2022-49794: iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger()
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: 0.20% (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 1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b, 2b29a7f2d52fb5281b30cf61c947d88bab18a29b, 65f20301607d07ee279b0804d11a05a62a6c1a1c.
Low priority for now. Upgrade to Linux Linux 1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b, 2b29a7f2d52fb5281b30cf61c947d88bab18a29b, 65f20301607d07ee279b0804d11a05a62a6c1a1c 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: iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger() If iio_trigger_register() returns error, it should call iio_trigger_free() to give up the reference that hold in iio_trigger_alloc(), so that it can call iio_trig_release() to free memory when the refcount hit to 0.
- Published
- May 1, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 10th percentile
- CWE
- CWE-401
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 · 0.2%
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.
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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 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel3.5 and later · before 4.9.334
- linux linux kernel4.10 and later · before 4.14.300
- linux linux kernel4.15 and later · before 4.19.267
- linux linux kernel4.20 and later · before 5.4.225
- linux linux kernel5.5 and later · before 5.10.156
- linux linux kernel5.11 and later · before 5.15.80
- linux linux kernel5.16 and later · before 6.0.10
- linux linux kernel6.1
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
- 3.5affected
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before c3ce73f60599a483dca7becd4112508833a40ef9affected · git
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4affected · git
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before 2b29a7f2d52fb5281b30cf61c947d88bab18a29baffected · git
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before 7b75515728b628a9a7540f201efdeb8ca7299385affected · git
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before 85d2a8b287a89853c0dcfc5a97b5e9d36376fe37affected · git
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before 1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4baffected · git
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before c27a3b6ba23350708cf5ab9962337447b51eb76daffected · git
- 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and later · before 65f20301607d07ee279b0804d11a05a62a6c1a1caffected · git
- before 3.5not affected · 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 6.0.10-1 | 6.0.10-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | before 5.3.18-150300.59.207.1.150300.18.124.1 | 5.3.18-150300.59.207.1.150300.18.124.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_58 | before 1-150300.7.3.1 | 1-150300.7.3.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-zfcpdump | before 5.3.18-150300.59.207.1 | 5.3.18-150300.59.207.1 |
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-2022-49792May 1, 2025 · iio: adc: mp2629: fix potential array out of bound access28Monitor
- ← EarlierCVE-2022-49793May 1, 2025 · iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()22Monitor
- Later →CVE-2022-49796May 1, 2025 · tracing: kprobe: Fix potential null-ptr-deref on trace_array in kprobe_event_gen_test_exit()22Monitor
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 | 1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b | Vendor (CNA) |
| Linux Linux | 2b29a7f2d52fb5281b30cf61c947d88bab18a29b | Vendor (CNA) |
| Linux Linux | 65f20301607d07ee279b0804d11a05a62a6c1a1c | Vendor (CNA) |
| Linux Linux | 7b75515728b628a9a7540f201efdeb8ca7299385 | Vendor (CNA) |
| Linux Linux | 85d2a8b287a89853c0dcfc5a97b5e9d36376fe37 | Vendor (CNA) |
| Linux Linux | a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4 | Vendor (CNA) |
| Linux Linux | c27a3b6ba23350708cf5ab9962337447b51eb76d | Vendor (CNA) |
| Linux Linux | c3ce73f60599a483dca7becd4112508833a40ef9 | Vendor (CNA) |
| debian:linux | 6.0.10-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-default | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-default-base | 5.3.18-150300.59.207.1.150300.18.124.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-docs | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP3_Update_58 | 1-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-obs-build | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-preempt | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-source | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-syms | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.3.18-150300.59.207.1 · SUSE:Linux Enterprise Server 15 SP3-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)
CWE-401 · Missing Release of Memory after Effective LifetimeCVSS 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
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (7 more)Show less
- git.kernel.org/stable/c/2b29a7f2d52fb5281b30cf61c947d88bab18a29b
- git.kernel.org/stable/c/65f20301607d07ee279b0804d11a05a62a6c1a1c
- git.kernel.org/stable/c/7b75515728b628a9a7540f201efdeb8ca7299385
- git.kernel.org/stable/c/85d2a8b287a89853c0dcfc5a97b5e9d36376fe37
- git.kernel.org/stable/c/a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4
- git.kernel.org/stable/c/c27a3b6ba23350708cf5ab9962337447b51eb76d
- git.kernel.org/stable/c/c3ce73f60599a483dca7becd4112508833a40ef9
Vendor advisories and official records. Exploit/PoC links are deliberately left out.