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NVD / CVE Program· CNA Linux

CVE-2026-93052: misc: bcm-vk: Use acquire/release for msgq_inited

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: 0.20% (FIRST EPSS).
  • Fixed version: Linux Linux 1df3926ed8771edf286ff753428b243f334e6041, 4984277bc43f84d7506346a09b29af138246d54a, 61b101c6a150057b6d512421ed108aed16e822ea; 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 1df3926ed8771edf286ff753428b243f334e6041, 4984277bc43f84d7506346a09b29af138246d54a, 61b101c6a150057b6d512421ed108aed16e822ea; 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: misc: bcm-vk: Use acquire/release for msgq_inited bcm_vk_sync_msgq() fills the message queue information and then sets msgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the message queues and their cached queue information. atomic_set()/atomic_read() do not order those accesses. A reader can see msgq_inited set while still seeing stale queue information. Use release when publishing the initialized queues and acquire when checking the gate. Keep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the gate and does not publish queue state to readers.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 10th 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%

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 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.

—

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

    • 5.12affected
    • 111d746bb4767ad476f80fe49067e3df3d9a9375 and later · before bab66a9e30e39a06f3463b19f8c704386dfd5268affected · git
    • 111d746bb4767ad476f80fe49067e3df3d9a9375 and later · before 679cfada6868723ccf162ec3b78c7402ff2405bfaffected · git
    • 111d746bb4767ad476f80fe49067e3df3d9a9375 and later · before f7a8f4cbc8cede0be55220367dc52b126e2d39e5affected · git
    • 111d746bb4767ad476f80fe49067e3df3d9a9375 and later · before 1df3926ed8771edf286ff753428b243f334e6041affected · git
    • 111d746bb4767ad476f80fe49067e3df3d9a9375 and later · before a45d6dd3c11e921882a2e74c7c8710b975f2eaa7affected · git
    • 111d746bb4767ad476f80fe49067e3df3d9a9375 and later · before 4984277bc43f84d7506346a09b29af138246d54aaffected · git
    • 111d746bb4767ad476f80fe49067e3df3d9a9375 and later · before 61b101c6a150057b6d512421ed108aed16e822eaaffected · git
    • before 5.12not affected · semver
    • 5.15.221 and later · up to and including 5.15.*not 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.

  • 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-2026-93050Sep 17, 2026 · ipack: ipoctal: fix UAF, null-ptr-deref, and use-after-free in cleanup on remove
    0Monitor
  • ← EarlierCVE-2026-93051Sep 17, 2026 · misc: ad525x_dpot: use driver core groups for sysfs files
    0Monitor
  • Later →CVE-2026-93053Sep 17, 2026 · speakup: keyhelp: guard letter_offsets possible out-of-range indexing
    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 Linux1df3926ed8771edf286ff753428b243f334e6041Vendor (CNA)
Linux Linux4984277bc43f84d7506346a09b29af138246d54aVendor (CNA)
Linux Linux61b101c6a150057b6d512421ed108aed16e822eaVendor (CNA)
Linux Linux679cfada6868723ccf162ec3b78c7402ff2405bfVendor (CNA)
Linux Linuxa45d6dd3c11e921882a2e74c7c8710b975f2eaa7Vendor (CNA)
Linux Linuxbab66a9e30e39a06f3463b19f8c704386dfd5268Vendor (CNA)
Linux Linuxf7a8f4cbc8cede0be55220367dc52b126e2d39e5Vendor (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 (6 more)

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

All records