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NVD / CVE Program· CNA Linux

CVE-2026-93183: drm/lima: call drm_mm_init() with a valid allocation range

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9, 788917ba77f5d69bd368c1d176ecceda346a2951, 79a3331ee436c8b1454f897d539606c9b5ebdf9f; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.

Low priority for now. Upgrade to Linux Linux 3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9, 788917ba77f5d69bd368c1d176ecceda346a2951, 79a3331ee436c8b1454f897d539606c9b5ebdf9f; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 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/lima: call drm_mm_init() with a valid allocation range lima_vm_create() is currently run before va_start and va_end are set up, meaning they are both 0. lima_vm_create() runs drm_mm_init() with them as arguments for the allocator, and if DRM_DEBUG_MM is enabled the DRM_MM_BUG_ON check in drm_mm_init then fires, as seen here on exynos4412-odroid-u2: [ 1.736297] ------------[ cut here ]------------ [ 1.740370] kernel BUG at drivers/gpu/drm/drm_mm.c:931! [ 1.745574] Internal error: Oops - BUG: 0 [#1] SMP ARM [ 1.750697] Modules linked in: [ 1.753734] CPU: 0 UID: 0 PID: 41 Comm: kworker/u16:1 Not tainted 7.0.10-postmarketos-exynos4 #11 PREEMPT [ 1.763372] Hardware name: Samsung Exynos (Flattened Device Tree) [ 1.769446] Workqueue: events_unbound deferred_probe_work_func [ 1.775261] PC is at drm_mm_init+0x9c/0xa4 [ 1.779339] LR is at lima_vm_create+0x144/0x17c [ ... ] Fix the issue by moving the lima_vm_create() call after va_start and va_end are set up.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • A fix has been released

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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

    • 5.2affected
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before af1f276d50c9d7ebcd25770f358ca503a89d96d7affected · git
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95aaffected · git
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before ad4e908096dff97646f77b04e2e2825225e215f7affected · git
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before 788917ba77f5d69bd368c1d176ecceda346a2951affected · git
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before 79a3331ee436c8b1454f897d539606c9b5ebdf9faffected · git
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before e2a7cee341986cb5b544a8286edc7fb0494c592eaffected · git
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before e0773ad25a34a49aece176721c466cf214e02222affected · git
    • a1d2a6339961efc078208dc3b2f006e9e9a8e119 and later · before 3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9affected · git
    • before 5.2not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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    40Plan
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  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-93181Sep 17, 2026 · perf/x86/intel/uncore: Fix uncore_box ref/unref ordering
    0Monitor
  • ← EarlierCVE-2026-93182Sep 17, 2026 · sched/fair: Fix overflow in update_tg_cfs_runnable()
    0Monitor
  • Later →CVE-2026-93184Sep 17, 2026 · ASoC: fsl_audmix: rework runtime PM handling in probe
    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 Linux3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9Vendor (CNA)
Linux Linux788917ba77f5d69bd368c1d176ecceda346a2951Vendor (CNA)
Linux Linux79a3331ee436c8b1454f897d539606c9b5ebdf9fVendor (CNA)
Linux Linuxad4e908096dff97646f77b04e2e2825225e215f7Vendor (CNA)
Linux Linuxaf1f276d50c9d7ebcd25770f358ca503a89d96d7Vendor (CNA)
Linux Linuxe0773ad25a34a49aece176721c466cf214e02222Vendor (CNA)
Linux Linuxe2a7cee341986cb5b544a8286edc7fb0494c592eVendor (CNA)
Linux Linuxfd6bc5f1d6b54047b06b82bab25a7e21e4b1c95aVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · 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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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✗ → ✓

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References

Show all references (7 more)

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

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