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NVD / CVE Program· CNA Linux

CVE-2022-50535: drm/amd/display: Fix potential null-deref in dm_resume

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 00b655fa96b4e941351cc4bf5ca755a65ae94a8e, 4.19.276, 5.10.173.

Low priority for now. Upgrade to Linux Linux 00b655fa96b4e941351cc4bf5ca755a65ae94a8e, 4.19.276, 5.10.173 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: drm/amd/display: Fix potential null-deref in dm_resume [Why] Fixing smatch error: dm_resume() error: we previously assumed 'aconnector->dc_link' could be null [How] Check if dc_link null at the beginning of the loop, so further checks can be dropped.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 7, 2025
Updated
Aug 15, 2026
EPSS
0.1% · 5th 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 · 0.1%

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

  • 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 kernel4.15 and later · before 4.19.276
  • linux linux kernel4.20 and later · before 5.4.235
  • linux linux kernel5.5 and later · before 5.10.173
  • linux linux kernel5.11 and later · before 5.15.99
  • linux linux kernel5.16 and later · before 6.1.16
  • linux linux kernel6.2 and later · before 6.2.3

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

    • 2983416458b2e09f7246e8e55df78ccf5968693b, 5.18affected
    • e0082f71e5d2481ce59d49dbfd3677f5fdc85836 and later · before fd79b61af2782f8875c78f50cdb8630ec43e2990affected · git
    • dd9b4b435a56a7a29c7d1ccc6479847354842255 and later · before d236103782de25736996a45bd36ac2a89bdc93c6affected · git
    • 4b44cd5840577479ee6ed387371dd1d1252ca921 and later · before 9f73793b81637c60ccc83cc508645310b8ab7d80affected · git
    • 6a03581ccffa571bfa1a9f3a097e1a4d7164fd2d and later · before bb9a5562beb982aa5ebb73c521c49596ff8b8030affected · git
    • f4346fb3edf7720db3f7f5e1cab1f667cd024280 and later · before 8e365f1bd672cc9320a936f6ae6f8087aa40e9bcaffected · git
    • f4346fb3edf7720db3f7f5e1cab1f667cd024280 and later · before 00b655fa96b4e941351cc4bf5ca755a65ae94a8eaffected · git
    • f4346fb3edf7720db3f7f5e1cab1f667cd024280 and later · before 7a7175a2cd84b7874bebbf8e59f134557a34161baffected · git
    • 4.19.239 and later · before 4.19.276affected · semver
    • 5.4.190 and later · before 5.4.235affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.20-16.1.20-1

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-2022-50533Oct 7, 2025 · wifi: mac80211: mlme: fix null-ptr deref on failed assoc
    22Monitor
  • ← EarlierCVE-2022-50534Oct 7, 2025 · dm thin: Use last transaction's pmd->root when commit failed
    22Monitor
  • Later →CVE-2022-50536Oct 7, 2025 · bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data
    31Monitor

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 Linux00b655fa96b4e941351cc4bf5ca755a65ae94a8eVendor (CNA)
Linux Linux4.19.276Vendor (CNA)
Linux Linux5.10.173Vendor (CNA)
Linux Linux5.15.99Vendor (CNA)
Linux Linux5.18Vendor (CNA)
Linux Linux5.4.235Vendor (CNA)
Linux Linux7a7175a2cd84b7874bebbf8e59f134557a34161bVendor (CNA)
Linux Linux8e365f1bd672cc9320a936f6ae6f8087aa40e9bcVendor (CNA)
Linux Linux9f73793b81637c60ccc83cc508645310b8ab7d80Vendor (CNA)
Linux Linuxbb9a5562beb982aa5ebb73c521c49596ff8b8030Vendor (CNA)
Linux Linuxd236103782de25736996a45bd36ac2a89bdc93c6Vendor (CNA)
Linux Linuxfd79b61af2782f8875c78f50cdb8630ec43e2990Vendor (CNA)
debian:linux6.1.20-1 · 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.

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-476 · NULL Pointer Dereference

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 (6 more)

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

All records