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NVD / CVE Program· CNA Linux

CVE-2022-49793: iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()

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: 0.22% (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 0dd52e141afde089304de470148d311b05c14564, 2c4e65285bdea23fd36d2ff376006ac64db6f42e, 5a39382aa5411d64b25a71516c2c7480aab13bb7.

Low priority for now. Upgrade to Linux Linux 0dd52e141afde089304de470148d311b05c14564, 2c4e65285bdea23fd36d2ff376006ac64db6f42e, 5a39382aa5411d64b25a71516c2c7480aab13bb7 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: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init() dev_set_name() allocates memory for name, it need be freed when device_add() fails, call put_device() to give up the reference that hold in device_initialize(), so that it can be freed in kobject_cleanup() when the refcount hit to 0. Fault injection test can trigger this: unreferenced object 0xffff8e8340a7b4c0 (size 32): comm "modprobe", pid 243, jiffies 4294678145 (age 48.845s) hex dump (first 32 bytes): 69 69 6f 5f 73 79 73 66 73 5f 74 72 69 67 67 65 iio_sysfs_trigge 72 00 a7 40 83 8e ff ff 00 86 13 c4 f6 ee ff ff r..@............ backtrace: [<0000000074999de8>] __kmem_cache_alloc_node+0x1e9/0x360 [<00000000497fd30b>] __kmalloc_node_track_caller+0x44/0x1a0 [<000000003636c520>] kstrdup+0x2d/0x60 [<0000000032f84da2>] kobject_set_name_vargs+0x1e/0x90 [<0000000092efe493>] dev_set_name+0x4e/0x70

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 1, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 13th percentile

Report tools

JSON

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.

Follow CVE-2022-49793

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

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Affected 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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel3.0 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

    • 3.0affected
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before f68c96821b61d2c71a35dbb8bf90c347fad624d9affected · git
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before 5a39382aa5411d64b25a71516c2c7480aab13bb7affected · git
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before b47bb521961f027b4dcf8683337a7a1ba9e5ea1faffected · git
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before 0dd52e141afde089304de470148d311b05c14564affected · git
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before 8dddf2699da296c84205582aaead6b43dd7e8c4baffected · git
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before 656f670613662b6cc77aad14112db2803ad18fa8affected · git
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before 2c4e65285bdea23fd36d2ff376006ac64db6f42eaffected · git
    • 1f785681a87068f123d3e23da13b2c55ab4f93ac and later · before efa17e90e1711bdb084e3954fa44afb6647331c0affected · git
    • before 3.0not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.10-16.0.10-1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-64kbbefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-default-basebefore 5.3.18-150300.59.207.1.150300.18.124.15.3.18-150300.59.207.1.150300.18.124.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-docsbefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-obs-buildbefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-preemptbefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-sourcebefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSkernel-symsbefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1
SUSE:Linux Enterprise Live Patching 15 SP3kernel-defaultbefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1
SUSE:Linux Enterprise Live Patching 15 SP3kernel-livepatch-SLE15-SP3_Update_58before 1-150300.7.3.11-150300.7.3.1
SUSE:Linux Enterprise Server 15 SP3-LTSSkernel-zfcpdumpbefore 5.3.18-150300.59.207.15.3.18-150300.59.207.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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 KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49790May 1, 2025 · Input: iforce - invert valid length check when fetching device IDs
    22Monitor
  • ← EarlierCVE-2022-49792May 1, 2025 · iio: adc: mp2629: fix potential array out of bound access
    28Monitor
  • Later →CVE-2022-49794May 1, 2025 · iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger()
    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 / packageFixed versionSource
Linux Linux0dd52e141afde089304de470148d311b05c14564Vendor (CNA)
Linux Linux2c4e65285bdea23fd36d2ff376006ac64db6f42eVendor (CNA)
Linux Linux5a39382aa5411d64b25a71516c2c7480aab13bb7Vendor (CNA)
Linux Linux656f670613662b6cc77aad14112db2803ad18fa8Vendor (CNA)
Linux Linux8dddf2699da296c84205582aaead6b43dd7e8c4bVendor (CNA)
Linux Linuxb47bb521961f027b4dcf8683337a7a1ba9e5ea1fVendor (CNA)
Linux Linuxefa17e90e1711bdb084e3954fa44afb6647331c0Vendor (CNA)
Linux Linuxf68c96821b61d2c71a35dbb8bf90c347fad624d9Vendor (CNA)
debian:linux6.0.10-1 · Debian:12Package registry (OSV)
suse:kernel-64kb5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-default5.3.18-150300.59.207.1 · SUSE:Linux Enterprise Live Patching 15 SP3Package registry (OSV)
suse:kernel-default-base5.3.18-150300.59.207.1.150300.18.124.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-docs5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-livepatch-SLE15-SP3_Update_581-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3Package registry (OSV)
suse:kernel-obs-build5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-preempt5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-source5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-syms5.3.18-150300.59.207.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:kernel-zfcpdump5.3.18-150300.59.207.1 · SUSE:Linux Enterprise Server 15 SP3-LTSSPackage 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 researchers

Finders, 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 Lifetime

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

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records