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NVD / CVE Program· CNA Linux

CVE-2022-49308: extcon: Modify extcon device to be created after driver data is set

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: 0.28% (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 033ec4e7e59ae5e1ef1e8c10bc6552926044ed1c, 35ff1ac55d301efb3f467cf5426faaeb3452994b, 368e68ad6da4317fc4170e8d92b51c13d1bfe7a7.

Low priority for now. Upgrade to Linux Linux 033ec4e7e59ae5e1ef1e8c10bc6552926044ed1c, 35ff1ac55d301efb3f467cf5426faaeb3452994b, 368e68ad6da4317fc4170e8d92b51c13d1bfe7a7 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: extcon: Modify extcon device to be created after driver data is set Currently, someone can invoke the sysfs such as state_show() intermittently before dev_set_drvdata() is done. And it can be a cause of kernel Oops because of edev is Null at that time. So modified the driver registration to after setting drviver data. - Oops's backtrace. Backtrace: [<c067865c>] (state_show) from [<c05222e8>] (dev_attr_show) [<c05222c0>] (dev_attr_show) from [<c02c66e0>] (sysfs_kf_seq_show) [<c02c6648>] (sysfs_kf_seq_show) from [<c02c496c>] (kernfs_seq_show) [<c02c4938>] (kernfs_seq_show) from [<c025e2a0>] (seq_read) [<c025e11c>] (seq_read) from [<c02c50a0>] (kernfs_fop_read) [<c02c5064>] (kernfs_fop_read) from [<c0231cac>] (__vfs_read) [<c0231c5c>] (__vfs_read) from [<c0231ee0>] (vfs_read) [<c0231e34>] (vfs_read) from [<c0232464>] (ksys_read) [<c02323f0>] (ksys_read) from [<c02324fc>] (sys_read) [<c02324e4>] (sys_read) from [<c00091d0>] (__sys_trace_return)

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 20th percentile
CWE
—

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.

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When you'll hear from us

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  • 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 kernelbefore 4.14.283
  • linux linux kernel4.15 and later · before 4.19.247
  • linux linux kernel4.20 and later · before 5.4.198
  • linux linux kernel5.5 and later · before 5.10.122
  • linux linux kernel5.11 and later · before 5.15.47
  • linux linux kernel5.16 and later · before 5.17.15
  • linux linux kernel5.18 and later · before 5.18.4

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
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before 6e721f3ad0535b24f19a62420f4da95212cf069caffected · git
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before cb81ea998c461868d1168411a867d8ffee12f23faffected · git
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before d472c78cc82999d07bd09193a6718016ce9cd386affected · git
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before abf3b222614f49f98e606fccdd269161c0d70204affected · git
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before 368e68ad6da4317fc4170e8d92b51c13d1bfe7a7affected · git
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before 35ff1ac55d301efb3f467cf5426faaeb3452994baffected · git
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before 033ec4e7e59ae5e1ef1e8c10bc6552926044ed1caffected · git
    • de55d8716ac50a356cea736c29bb7db5ac3d0190 and later · before 5dcc2afe716d69f5112ce035cb14f007461ff189affected · git
    • before 3.5not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.5-15.18.5-1

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-2022-49306Feb 26, 2025 · usb: dwc3: host: Stop setting the ACPI companion
    22Monitor
  • ← EarlierCVE-2022-49307Feb 26, 2025 · tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()
    22Monitor
  • Later →CVE-2022-49309Feb 26, 2025 · drivers: staging: rtl8723bs: Fix deadlock in rtw_surveydone_event_callback()
    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 Linux033ec4e7e59ae5e1ef1e8c10bc6552926044ed1cVendor (CNA)
Linux Linux35ff1ac55d301efb3f467cf5426faaeb3452994bVendor (CNA)
Linux Linux368e68ad6da4317fc4170e8d92b51c13d1bfe7a7Vendor (CNA)
Linux Linux5dcc2afe716d69f5112ce035cb14f007461ff189Vendor (CNA)
Linux Linux6e721f3ad0535b24f19a62420f4da95212cf069cVendor (CNA)
Linux Linuxabf3b222614f49f98e606fccdd269161c0d70204Vendor (CNA)
Linux Linuxcb81ea998c461868d1168411a867d8ffee12f23fVendor (CNA)
Linux Linuxd472c78cc82999d07bd09193a6718016ce9cd386Vendor (CNA)
debian:linux5.18.5-1 · Debian:12Package 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.

EPSS, last 120 days

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.

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)

—

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