CVE-2026-93115

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93115", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.086Z", "datePublished": "2026-09-17T16:11:23.145Z", "dateUpdated": "2026-10-19T09:05:49.022Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:05:49.022Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL\n\nEvery platform driver can be forced to match a device that doesn't match\nits list of device IDs because of device_match_driver_override(), so\nplatform drivers that rely on the existence of a device's ACPI companion\nobject need to verify its presence.\n\nmlxbf_pmc_probe() passes the result of ACPI_COMPANION() to\nacpi_device_hid(), which dereferences it, so force-binding the driver to\na device without an ACPI companion leads to a NULL pointer dereference.\n\nAccordingly, add a requisite ACPI_COMPANION() check against NULL to the\nmlxbf-pmc driver and return -ENODEV when the companion is missing."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/platform/mellanox/mlxbf-pmc.c"], "versions": [{"version": "1a218d312e65ec396b2739056a8ea78493015f21", "lessThan": "950d8e8375f3ff4787de51b7bdf8dd23a3ad6547", "status": "affected", "versionType": "git"}, {"version": "1a218d312e65ec396b2739056a8ea78493015f21", "lessThan": "fdfb736282b9665c0169df0c4152ec91fdea2767", "status": "affected", "versionType": "git"}, {"version": "1a218d312e65ec396b2739056a8ea78493015f21", "lessThan": "bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0", "status": "affected", "versionType": "git"}, {"version": "1a218d312e65ec396b2739056a8ea78493015f21", "lessThan": "a75b84119e56fc34b0f1403f3b93d357a55dabb6", "status": "affected", "versionType": "git"}, {"version": "1a218d312e65ec396b2739056a8ea78493015f21", "lessThan": "71ba8b6e28f7a83b724036f5de07e03bb5473286", "status": "affected", "versionType": "git"}, {"version": "1a218d312e65ec396b2739056a8ea78493015f21", "lessThan": "d25dd08268aeaceb485189aaa84aa6d68a460291", "status": "affected", "versionType": "git"}, {"version": "1a218d312e65ec396b2739056a8ea78493015f21", "lessThan": "c38cce70adef874c2a7b5132c14d6c221401deff", "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/platform/mellanox/mlxbf-pmc.c"], "versions": [{"version": "5.11", "status": "affected"}, {"version": "0", "lessThan": "5.11", "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": "5.11", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547"}, {"url": "https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767"}, {"url": "https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0"}, {"url": "https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6"}, {"url": "https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286"}, {"url": "https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291"}, {"url": "https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff"}], "title": "platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/platform/mellanox/mlxbf-pmc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "950d8e8375f3ff4787de51b7bdf8dd23a3ad6547", "status": "affected", "version": "1a218d312e65ec396b2739056a8ea78493015f21", "versionType": "git"}, {"lessThan": "fdfb736282b9665c0169df0c4152ec91fdea2767", "status": "affected", "version": "1a218d312e65ec396b2739056a8ea78493015f21", "versionType": "git"}, {"lessThan": "bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0", "status": "affected", "version": "1a218d312e65ec396b2739056a8ea78493015f21", "versionType": "git"}, {"lessThan": "a75b84119e56fc34b0f1403f3b93d357a55dabb6", "status": "affected", "version": "1a218d312e65ec396b2739056a8ea78493015f21", "versionType": "git"}, {"lessThan": "71ba8b6e28f7a83b724036f5de07e03bb5473286", "status": "affected", "version": "1a218d312e65ec396b2739056a8ea78493015f21", "versionType": "git"}, {"lessThan": "d25dd08268aeaceb485189aaa84aa6d68a460291", "status": "affected", "version": "1a218d312e65ec396b2739056a8ea78493015f21", "versionType": "git"}, {"lessThan": "c38cce70adef874c2a7b5132c14d6c221401deff", "status": "affected", "version": "1a218d312e65ec396b2739056a8ea78493015f21", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/platform/mellanox/mlxbf-pmc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.11"}, {"lessThan": "5.11", "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\nplatform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL\n\nEvery platform driver can be forced to match a device that doesn't match\nits list of device IDs because of device_match_driver_override(), so\nplatform drivers that rely on the existence of a device's ACPI companion\nobject need to verify its presence.\n\nmlxbf_pmc_probe() passes the result of ACPI_COMPANION() to\nacpi_device_hid(), which dereferences it, so force-binding the driver to\na device without an ACPI companion leads to a NULL pointer dereference.\n\nAccordingly, add a requisite ACPI_COMPANION() check against NULL to the\nmlxbf-pmc driver and return -ENODEV when the companion is missing."}], "id": "CVE-2026-93115", "lastModified": "2026-10-19T10:17:01.457", "metrics": {}, "published": "2026-09-17T17:18:06.073", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a218d312e65ec396b2739056a8ea78493015f21,950d8e8375f3ff4787de51b7bdf8dd23a3ad6547)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a218d312e65ec396b2739056a8ea78493015f21,fdfb736282b9665c0169df0c4152ec91fdea2767)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a218d312e65ec396b2739056a8ea78493015f21,bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a218d312e65ec396b2739056a8ea78493015f21,a75b84119e56fc34b0f1403f3b93d357a55dabb6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a218d312e65ec396b2739056a8ea78493015f21,71ba8b6e28f7a83b724036f5de07e03bb5473286)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a218d312e65ec396b2739056a8ea78493015f21,d25dd08268aeaceb485189aaa84aa6d68a460291)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a218d312e65ec396b2739056a8ea78493015f21,c38cce70adef874c2a7b5132c14d6c221401deff)"}}], "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": "5.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.11)"}}, {"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": "semver", "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": "2026-09-19T09:45:03.924980+00:00", "updated": "2026-09-19T15:30:06.234953+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}