misc: bcm-vk: Use acquire/release for msgq_inited
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.
CVE-2026-93052
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-93052
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"lessThan": "bab66a9e30e39a06f3463b19f8c704386dfd5268",
"versionType": "git"
},
{
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"lessThan": "679cfada6868723ccf162ec3b78c7402ff2405bf",
"versionType": "git"
},
{
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"lessThan": "f7a8f4cbc8cede0be55220367dc52b126e2d39e5",
"versionType": "git"
},
{
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"lessThan": "1df3926ed8771edf286ff753428b243f334e6041",
"versionType": "git"
},
{
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"lessThan": "a45d6dd3c11e921882a2e74c7c8710b975f2eaa7",
"versionType": "git"
},
{
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"lessThan": "4984277bc43f84d7506346a09b29af138246d54a",
"versionType": "git"
},
{
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"lessThan": "61b101c6a150057b6d512421ed108aed16e822ea",
"versionType": "git"
}
],
"programFiles": [
"drivers/misc/bcm-vk/bcm_vk_msg.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/misc/bcm-vk/bcm_vk_msg.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93052
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37788 · Revision 1
- Added to Heist Feed
- Publisher date