CVE-2026-93052

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93052", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T15:57:05.658Z", "datePublished": "2026-09-17T16:10:41.716Z", "dateUpdated": "2026-10-19T09:04:47.240Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:04:47.240Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: bcm-vk: Use acquire/release for msgq_inited\n\nbcm_vk_sync_msgq() fills the message queue information and then sets\nmsgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the\nmessage queues and their cached queue information.\n\natomic_set()/atomic_read() do not order those accesses. A reader can see\nmsgq_inited set while still seeing stale queue information. Use release\nwhen publishing the initialized queues and acquire when checking the gate.\n\nKeep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the\ngate and does not publish queue state to readers."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/misc/bcm-vk/bcm_vk_msg.c"], "versions": [{"version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "lessThan": "bab66a9e30e39a06f3463b19f8c704386dfd5268", "status": "affected", "versionType": "git"}, {"version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "lessThan": "679cfada6868723ccf162ec3b78c7402ff2405bf", "status": "affected", "versionType": "git"}, {"version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "lessThan": "f7a8f4cbc8cede0be55220367dc52b126e2d39e5", "status": "affected", "versionType": "git"}, {"version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "lessThan": "1df3926ed8771edf286ff753428b243f334e6041", "status": "affected", "versionType": "git"}, {"version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "lessThan": "a45d6dd3c11e921882a2e74c7c8710b975f2eaa7", "status": "affected", "versionType": "git"}, {"version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "lessThan": "4984277bc43f84d7506346a09b29af138246d54a", "status": "affected", "versionType": "git"}, {"version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "lessThan": "61b101c6a150057b6d512421ed108aed16e822ea", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/misc/bcm-vk/bcm_vk_msg.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268"}, {"url": "https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf"}, {"url": "https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5"}, {"url": "https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041"}, {"url": "https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"}, {"url": "https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a"}, {"url": "https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea"}], "title": "misc: bcm-vk: Use acquire/release for msgq_inited", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/misc/bcm-vk/bcm_vk_msg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bab66a9e30e39a06f3463b19f8c704386dfd5268", "status": "affected", "version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "versionType": "git"}, {"lessThan": "679cfada6868723ccf162ec3b78c7402ff2405bf", "status": "affected", "version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "versionType": "git"}, {"lessThan": "f7a8f4cbc8cede0be55220367dc52b126e2d39e5", "status": "affected", "version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "versionType": "git"}, {"lessThan": "1df3926ed8771edf286ff753428b243f334e6041", "status": "affected", "version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "versionType": "git"}, {"lessThan": "a45d6dd3c11e921882a2e74c7c8710b975f2eaa7", "status": "affected", "version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "versionType": "git"}, {"lessThan": "4984277bc43f84d7506346a09b29af138246d54a", "status": "affected", "version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "versionType": "git"}, {"lessThan": "61b101c6a150057b6d512421ed108aed16e822ea", "status": "affected", "version": "111d746bb4767ad476f80fe49067e3df3d9a9375", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/misc/bcm-vk/bcm_vk_msg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.12"}, {"lessThan": "5.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: bcm-vk: Use acquire/release for msgq_inited\n\nbcm_vk_sync_msgq() fills the message queue information and then sets\nmsgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the\nmessage queues and their cached queue information.\n\natomic_set()/atomic_read() do not order those accesses. A reader can see\nmsgq_inited set while still seeing stale queue information. Use release\nwhen publishing the initialized queues and acquire when checking the gate.\n\nKeep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the\ngate and does not publish queue state to readers."}], "id": "CVE-2026-93052", "lastModified": "2026-10-19T10:16:55.010", "metrics": {}, "published": "2026-09-17T17:17:58.657", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[111d746bb4767ad476f80fe49067e3df3d9a9375,bab66a9e30e39a06f3463b19f8c704386dfd5268)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[111d746bb4767ad476f80fe49067e3df3d9a9375,679cfada6868723ccf162ec3b78c7402ff2405bf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[111d746bb4767ad476f80fe49067e3df3d9a9375,f7a8f4cbc8cede0be55220367dc52b126e2d39e5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[111d746bb4767ad476f80fe49067e3df3d9a9375,1df3926ed8771edf286ff753428b243f334e6041)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[111d746bb4767ad476f80fe49067e3df3d9a9375,a45d6dd3c11e921882a2e74c7c8710b975f2eaa7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[111d746bb4767ad476f80fe49067e3df3d9a9375,4984277bc43f84d7506346a09b29af138246d54a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[111d746bb4767ad476f80fe49067e3df3d9a9375,61b101c6a150057b6d512421ed108aed16e822ea)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.221,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.188,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T09:30:13.292103+00:00", "updated": "2026-09-20T07:00:08.575208+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-665"]}