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NVD / CVE Program· CNA Linux

CVE-2026-68236: drm/amd/display: set new_stream to NULL after release

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: 0.12% (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 01ba5b36898d6258f584269537cc49e7b05cf7c6, 0676fecbb5242aa22c057e78326d6d6041db034c, 5182e442e61397d446c36995b8f5676942d35b82; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 01ba5b36898d6258f584269537cc49e7b05cf7c6, 0676fecbb5242aa22c057e78326d6d6041db034c, 5182e442e61397d446c36995b8f5676942d35b82; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 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: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Aug 10, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 2th 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 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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  • 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 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.

—

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

    • 4.15affected
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before 92b7c6e3a1546c6db868b07e93fa6fb950d1d3a0affected · git
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before bf9c06c70f496f1ba4474caf95c69696c828340eaffected · git
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before 01ba5b36898d6258f584269537cc49e7b05cf7c6affected · git
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76affected · git
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before 5182e442e61397d446c36995b8f5676942d35b82affected · git
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before 679f23f0a3606afcef1ffabd72222f00a54ad9e3affected · git
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before 0676fecbb5242aa22c057e78326d6d6041db034caffected · git
    • 9b690ef3c70422cdcd0cf912db33f2c92ef4a53f and later · before 9fa26b9eed6195bf840f39ac183b9a6237548755affected · git
    • before 4.15not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:10kernelbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64kbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-corebefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-debugbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-debug-corebefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-debug-develbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-debug-devel-matchedbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-debug-modulesbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-corebefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-extrabefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-develbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-devel-matchedbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-modulesbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-modules-corebefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-64k-modules-extrabefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-abi-stablelistsbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-corebefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-cross-headersbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-debugbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-debug-corebefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-debug-develbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-debug-devel-matchedbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-debug-modulesbefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2
AlmaLinux:10kernel-debug-modules-corebefore 6.12.0-211.68.1.el10_26.12.0-211.68.1.el10_2

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-68216Aug 10, 2026 · media: pwc: Return queued buffers on start_streaming() failure
    31Monitor
  • ← EarlierCVE-2026-68233Aug 10, 2026 · drm/vc4: Shut down BO cache timer before teardown
    0Monitor
  • Later →CVE-2026-68238Aug 10, 2026 · drm/amdgpu: Release VFCT ACPI table reference
    0Monitor

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 Linux01ba5b36898d6258f584269537cc49e7b05cf7c6Vendor (CNA)
Linux Linux0676fecbb5242aa22c057e78326d6d6041db034cVendor (CNA)
Linux Linux5182e442e61397d446c36995b8f5676942d35b82Vendor (CNA)
Linux Linux679f23f0a3606afcef1ffabd72222f00a54ad9e3Vendor (CNA)
Linux Linux92b7c6e3a1546c6db868b07e93fa6fb950d1d3a0Vendor (CNA)
Linux Linux9fa26b9eed6195bf840f39ac183b9a6237548755Vendor (CNA)
Linux Linuxba8bf1dcbb44773e7a0fd13b42925c644e0d5e76Vendor (CNA)
Linux Linuxbf9c06c70f496f1ba4474caf95c69696c828340eVendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
almalinux:bpftool4.18.0-553.173.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel4.18.0-553.173.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-modules5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-modules-core5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-modules-extra5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-abi-stablelists5.14.0-687.57.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt4.18.0-553.173.1.rt7.514.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-rt-core4.18.0-553.173.1.rt7.514.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-rt-debug4.18.0-553.173.1.rt7.514.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-rt-debug-core4.18.0-553.173.1.rt7.514.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-rt-debug-devel4.18.0-553.173.1.rt7.514.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-rt-debug-modules4.18.0-553.173.1.rt7.514.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-rt-debug-modules-extra4.18.0-553.173.1.rt7.514.el8_10 · AlmaLinux:8Package registry (OSV)

+24

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.

  • CVE-2026-645974 days apartsmb: client: fix double-free in SMB2_close() replay
    39Monitor
  • CVE-2026-6453514 days apartnvmet-tcp: Fix potential UAF when ddgst mismatch
    39Monitor
  • CVE-2026-681920 days apartwifi: brcmfmac: make release_scratchbuffers idempotent
    35Monitor
  • CVE-2026-645994 days apartcrypto: amlogic - avoid double cleanup in meson_crypto_probe()
    31Monitor
  • CVE-2026-645705 days apartwifi: mac80211: fix fils_discovery double free on alloc failure
    31Monitor
  • CVE-2026-721025 days apartdm_early_create: fix freeing used table on dm_resume failure
    31Monitor

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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-415 · Double Free

CVSS vector

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

nvd-secondary

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. SSVC exploitation— → none
  2. 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