{"api_version":"1","generated_at":"2026-09-18T08:10:52+00:00","cve":"CVE-2026-93115","urls":{"html":"https://cve.report/CVE-2026-93115","api":"https://cve.report/api/cve/CVE-2026-93115.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-93115","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-93115"},"summary":{"title":"platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:18:06","updated_at":"2026-09-17 17:18:06"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547","name":"https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767","name":"https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291","name":"https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0","name":"https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286","name":"https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff","name":"https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6","name":"https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93115","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93115","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1a218d312e65ec396b2739056a8ea78493015f21 950d8e8375f3ff4787de51b7bdf8dd23a3ad6547 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1a218d312e65ec396b2739056a8ea78493015f21 fdfb736282b9665c0169df0c4152ec91fdea2767 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1a218d312e65ec396b2739056a8ea78493015f21 bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1a218d312e65ec396b2739056a8ea78493015f21 a75b84119e56fc34b0f1403f3b93d357a55dabb6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1a218d312e65ec396b2739056a8ea78493015f21 71ba8b6e28f7a83b724036f5de07e03bb5473286 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1a218d312e65ec396b2739056a8ea78493015f21 d25dd08268aeaceb485189aaa84aa6d68a460291 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1a218d312e65ec396b2739056a8ea78493015f21 c38cce70adef874c2a7b5132c14d6c221401deff git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.221 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:11:23.145Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-93115","datePublished":"2026-09-17T16:11:23.145Z","dateReserved":"2026-09-17T16:02:15.086Z","dateUpdated":"2026-09-17T16:11:23.145Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:18:06","lastModifiedDate":"2026-09-17 17:18:06","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"93115","Ordinal":"1","Title":"platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NUL","CVE":"CVE-2026-93115","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"93115","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NUL"}]}}}