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NVD / CVE Program· CNA Linux

CVE-2022-50185: drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers()

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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 136f614931a2bb73616b292cf542da3a18daefd5, 1f341053852be76f82610ce47a505d930512f05c, 782e413e38dffd37cc85b08b1ccb982adb4a93ce.

Low priority for now. Upgrade to Linux Linux 136f614931a2bb73616b292cf542da3a18daefd5, 1f341053852be76f82610ce47a505d930512f05c, 782e413e38dffd37cc85b08b1ccb982adb4a93ce 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/radeon: fix potential buffer overflow in ni_set_mc_special_registers() The last case label can write two buffers 'mc_reg_address[j]' and 'mc_data[j]' with 'j' offset equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE since there are no checks for this value in both case labels after the last 'j++'. Instead of changing '>' to '>=' there, add the bounds check at the start of the second 'case' (the first one already has it). Also, remove redundant last checks for 'j' index bigger than array size. The expression is always false. Moreover, before or after the patch 'table->last' can be equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE and it seems it can be a valid value. Detected using the static analysis tool - Svace.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Jun 18, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 20th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 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

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • 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 kernel3.11 and later · before 4.14.291
  • linux linux kernel4.15 and later · before 4.19.256
  • linux linux kernel4.20 and later · before 5.4.211
  • linux linux kernel5.5 and later · before 5.10.137
  • linux linux kernel5.11 and later · before 5.15.61
  • linux linux kernel5.16 and later · before 5.18.18
  • linux linux kernel5.19 and later · before 5.19.2

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

    • 3.11affected
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before ea73869df6ef386fc0feeb28ff66742ca835b18faffected · git
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before 1f341053852be76f82610ce47a505d930512f05caffected · git
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before db1a9add3f90ff1c641974d5bb910c16b87af4efaffected · git
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before 8508d6d23a247c29792ce2fc0df3f3404d6a6a80affected · git
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before deb603c5928e546609c0d5798e231d0205748943affected · git
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before 782e413e38dffd37cc85b08b1ccb982adb4a93ceaffected · git
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before 9faff03617afeced1c4e5daa89e79b3906374342affected · git
    • 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 and later · before 136f614931a2bb73616b292cf542da3a18daefd5affected · git
    • before 3.11not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.2-16.0.2-1
SUSE:Linux Enterprise Live Patching 12 SP5kernel-defaultbefore 4.12.14-122.272.14.12.14-122.272.1
SUSE:Linux Enterprise Live Patching 12 SP5kgraft-patch-SLE12-SP5_Update_72before 1-8.3.11-8.3.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-sourcebefore 4.12.14-122.272.14.12.14-122.272.1
SUSE:Linux Enterprise Server 12 SP5-LTSSkernel-symsbefore 4.12.14-122.272.14.12.14-122.272.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • 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
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-50183Jun 18, 2025 · drm/meson: encoder_cvbs: Fix refcount leak in meson_encoder_cvbs_init
    22Monitor
  • ← EarlierCVE-2022-50184Jun 18, 2025 · drm/meson: encoder_hdmi: Fix refcount leak in meson_encoder_hdmi_init
    22Monitor
  • Later →CVE-2022-50186Jun 18, 2025 · ath11k: fix missing skb drop on htc_tx_completion error
    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 Linux136f614931a2bb73616b292cf542da3a18daefd5Vendor (CNA)
Linux Linux1f341053852be76f82610ce47a505d930512f05cVendor (CNA)
Linux Linux782e413e38dffd37cc85b08b1ccb982adb4a93ceVendor (CNA)
Linux Linux8508d6d23a247c29792ce2fc0df3f3404d6a6a80Vendor (CNA)
Linux Linux9faff03617afeced1c4e5daa89e79b3906374342Vendor (CNA)
Linux Linuxdb1a9add3f90ff1c641974d5bb910c16b87af4efVendor (CNA)
Linux Linuxdeb603c5928e546609c0d5798e231d0205748943Vendor (CNA)
Linux Linuxea73869df6ef386fc0feeb28ff66742ca835b18fVendor (CNA)
debian:linux6.0.2-1 · Debian:12Package registry (OSV)
suse:kernel-default4.12.14-122.272.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package registry (OSV)
suse:kernel-source4.12.14-122.272.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kernel-syms4.12.14-122.272.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)
suse:kgraft-patch-SLE12-SP5_Update_721-8.3.1 · SUSE:Linux Enterprise Live Patching 12 SP5Package 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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