{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43160", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.990Z", "datePublished": "2026-05-06T11:27:39.223Z", "dateUpdated": "2026-05-06T11:27:39.223Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-06T11:27:39.223Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: macsmc: Initialize mutex\n\nInitialize struct apple_smc's mutex in apple_smc_probe(). Using the\nmutex uninitialized surprisingly resulted only in occasional NULL\npointer dereferences in apple_smc_read() calls from the probe()\nfunctions of sub devices."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mfd/macsmc.c"], "versions": [{"version": "e038d985c9823a12cd64fa077d0c5aca2c644b67", "lessThan": "a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb", "status": "affected", "versionType": "git"}, {"version": "e038d985c9823a12cd64fa077d0c5aca2c644b67", "lessThan": "2d5932588f029f7787f52c29174fead9bbc6b2cf", "status": "affected", "versionType": "git"}, {"version": "e038d985c9823a12cd64fa077d0c5aca2c644b67", "lessThan": "414f65d6736342c77d4ec5e7373039f4a09250dd", "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/mfd/macsmc.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.17", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb"}, {"url": "https://git.kernel.org/stable/c/2d5932588f029f7787f52c29174fead9bbc6b2cf"}, {"url": "https://git.kernel.org/stable/c/414f65d6736342c77d4ec5e7373039f4a09250dd"}], "title": "mfd: macsmc: Initialize mutex", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: macsmc: Initialize mutex\n\nInitialize struct apple_smc's mutex in apple_smc_probe(). Using the\nmutex uninitialized surprisingly resulted only in occasional NULL\npointer dereferences in apple_smc_read() calls from the probe()\nfunctions of sub devices."}], "id": "CVE-2026-43160", "lastModified": "2026-05-06T13:07:51.607", "metrics": {}, "published": "2026-05-06T12:16:33.997", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2d5932588f029f7787f52c29174fead9bbc6b2cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/414f65d6736342c77d4ec5e7373039f4a09250dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: mfd: macsmc: Initialize mutex", "id": "2467063", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467063"}, "csaw": false, "cwe": "CWE-909", "details": ["A flaw was found in the Linux kernel's macsmc driver. This vulnerability occurs because a mutex, a mechanism used to prevent simultaneous access to shared resources, within the `struct apple_smc` is not properly initialized in the `apple_smc_probe()` function. An uninitialized mutex can lead to occasional null pointer dereferences when `apple_smc_read()` is called. This can result in system instability or a Denial of Service (DoS)."], "name": "CVE-2026-43160", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43160\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43160\nhttps://lore.kernel.org/linux-cve-announce/2026050631-CVE-2026-43160-163c@gregkh/T"]}