VulnerabilityPublished 17 Sep 2026Updated 19 Oct 2026

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

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f7a8f4cbc8cede0be55220367dc52b126e2d39e5 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f7a8f4cbc8cede0be55220367dc52b126e2d39e5, bab66a9e30e39a06f3463b19f8c704386dfd5268, a45d6dd3c11e921882a2e74c7c8710b975f2eaa7 +4

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 111d746bb4767ad476f80fe49067e3df3d9a9375, < f7a8f4cbc8cede0be55220367dc52b126e2d39e5	Fixed in f7a8f4cbc8cede0be55220367dc52b126e2d39e5
LinuxLinux	Affected ≥ 111d746bb4767ad476f80fe49067e3df3d9a9375, < bab66a9e30e39a06f3463b19f8c704386dfd5268	Fixed in bab66a9e30e39a06f3463b19f8c704386dfd5268
LinuxLinux	Affected ≥ 111d746bb4767ad476f80fe49067e3df3d9a9375, < a45d6dd3c11e921882a2e74c7c8710b975f2eaa7	Fixed in a45d6dd3c11e921882a2e74c7c8710b975f2eaa7
LinuxLinux	Affected ≥ 111d746bb4767ad476f80fe49067e3df3d9a9375, < 4984277bc43f84d7506346a09b29af138246d54a	Fixed in 4984277bc43f84d7506346a09b29af138246d54a
LinuxLinux	Affected ≥ 111d746bb4767ad476f80fe49067e3df3d9a9375, < 679cfada6868723ccf162ec3b78c7402ff2405bf	Fixed in 679cfada6868723ccf162ec3b78c7402ff2405bf
LinuxLinux	Affected ≥ 111d746bb4767ad476f80fe49067e3df3d9a9375, < 61b101c6a150057b6d512421ed108aed16e822ea	Fixed in 61b101c6a150057b6d512421ed108aed16e822ea

Description

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.

References

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