CVE-2026-98665

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98665", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.363Z", "datePublished": "2026-10-18T15:44:35.323Z", "dateUpdated": "2026-10-21T12:55:30.413Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:55:30.413Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: health: max30102: fix NULL dereference in interrupt handler\n\nThe interrupt is requested in max30102_probe() and stays enabled\nfor the lifetime of the device, but indio_dev->active_scan_mask is only\nvalid while a buffer is enabled. When an interrupt arrives while no\nbuffer is enabled, the handler dereferences the NULL active_scan_mask:\n\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n Call trace:\n __bitmap_weight+0x64/0x98 (P)\n max30102_interrupt_handler+0x48/0x160 [max30102]\n\nCall max30102_fifo_count() at the top of the handler and return early\nunless it reports a FIFO sample is ready. Because FIFO_RDY is the only\ninterrupt source enabled in max30102_chip_init(), an invocation of\nmax30102_interrupt_handler() without the FIFO_RDY interrupt status bit\nset carries no data to read and can return before touching\nactive_scan_mask. A negative return from max30102_fifo_count()\nindicates a failed interrupt status read and is treated the same way."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/health/max30102.c"], "versions": [{"version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "lessThan": "2a74f30a7bb305cdc5c3e3e9239b32bb84f3529f", "status": "affected", "versionType": "git"}, {"version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "lessThan": "eeb23ba97bd8016e815ef70300b8d34a0a316b90", "status": "affected", "versionType": "git"}, {"version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "lessThan": "60699102827fdb51f9591414165359c8e867f302", "status": "affected", "versionType": "git"}, {"version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "lessThan": "8d6f98972fe2bd6f73f39d982af0c85d766a1503", "status": "affected", "versionType": "git"}, {"version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "lessThan": "f0ea4824deebf21dacfbe397c4b0a5fd3e745a8d", "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/iio/health/max30102.c"], "versions": [{"version": "4.16", "status": "affected"}, {"version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.10", "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": "4.16", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2a74f30a7bb305cdc5c3e3e9239b32bb84f3529f"}, {"url": "https://git.kernel.org/stable/c/eeb23ba97bd8016e815ef70300b8d34a0a316b90"}, {"url": "https://git.kernel.org/stable/c/60699102827fdb51f9591414165359c8e867f302"}, {"url": "https://git.kernel.org/stable/c/8d6f98972fe2bd6f73f39d982af0c85d766a1503"}, {"url": "https://git.kernel.org/stable/c/f0ea4824deebf21dacfbe397c4b0a5fd3e745a8d"}], "title": "iio: health: max30102: fix NULL dereference in interrupt handler", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iio/health/max30102.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2a74f30a7bb305cdc5c3e3e9239b32bb84f3529f", "status": "affected", "version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "versionType": "git"}, {"lessThan": "eeb23ba97bd8016e815ef70300b8d34a0a316b90", "status": "affected", "version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "versionType": "git"}, {"lessThan": "60699102827fdb51f9591414165359c8e867f302", "status": "affected", "version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "versionType": "git"}, {"lessThan": "8d6f98972fe2bd6f73f39d982af0c85d766a1503", "status": "affected", "version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "versionType": "git"}, {"lessThan": "f0ea4824deebf21dacfbe397c4b0a5fd3e745a8d", "status": "affected", "version": "90579b69e94bf11ea0745ff003e82a6ce9725f96", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iio/health/max30102.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.16"}, {"lessThan": "4.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.56", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.10", "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\niio: health: max30102: fix NULL dereference in interrupt handler\n\nThe interrupt is requested in max30102_probe() and stays enabled\nfor the lifetime of the device, but indio_dev->active_scan_mask is only\nvalid while a buffer is enabled. When an interrupt arrives while no\nbuffer is enabled, the handler dereferences the NULL active_scan_mask:\n\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n Call trace:\n __bitmap_weight+0x64/0x98 (P)\n max30102_interrupt_handler+0x48/0x160 [max30102]\n\nCall max30102_fifo_count() at the top of the handler and return early\nunless it reports a FIFO sample is ready. Because FIFO_RDY is the only\ninterrupt source enabled in max30102_chip_init(), an invocation of\nmax30102_interrupt_handler() without the FIFO_RDY interrupt status bit\nset carries no data to read and can return before touching\nactive_scan_mask. A negative return from max30102_fifo_count()\nindicates a failed interrupt status read and is treated the same way."}], "id": "CVE-2026-98665", "lastModified": "2026-10-21T13:21:35.777", "metrics": {}, "published": "2026-10-18T16:17:19.797", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a74f30a7bb305cdc5c3e3e9239b32bb84f3529f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/60699102827fdb51f9591414165359c8e867f302"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8d6f98972fe2bd6f73f39d982af0c85d766a1503"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eeb23ba97bd8016e815ef70300b8d34a0a316b90"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f0ea4824deebf21dacfbe397c4b0a5fd3e745a8d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: iio: health: max30102: fix NULL dereference in interrupt handler", "id": "2555171", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555171"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: health: max30102: fix NULL dereference in interrupt handler\nThe interrupt is requested in max30102_probe() and stays enabled\nfor the lifetime of the device, but indio_dev->active_scan_mask is only\nvalid while a buffer is enabled. When an interrupt arrives while no\nbuffer is enabled, the handler dereferences the NULL active_scan_mask:\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000000\nCall trace:\n__bitmap_weight+0x64/0x98 (P)\nmax30102_interrupt_handler+0x48/0x160 [max30102]\nCall max30102_fifo_count() at the top of the handler and return early\nunless it reports a FIFO sample is ready. Because FIFO_RDY is the only\ninterrupt source enabled in max30102_chip_init(), an invocation of\nmax30102_interrupt_handler() without the FIFO_RDY interrupt status bit\nset carries no data to read and can return before touching\nactive_scan_mask. A negative return from max30102_fifo_count()\nindicates a failed interrupt status read and is treated the same way.", "A flaw was found in the Linux kernel's MAX30102 sensor driver. This vulnerability allows a local user to cause a Denial of Service (DoS) through a system crash. The issue occurs when a device interrupt is triggered while no data buffer is active, causing the interrupt handler to access uninitialized memory (NULL pointer dereference)."], "name": "CVE-2026-98665", "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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98665\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98665\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98665.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[90579b69e94bf11ea0745ff003e82a6ce9725f96,eeb23ba97bd8016e815ef70300b8d34a0a316b90)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[90579b69e94bf11ea0745ff003e82a6ce9725f96,60699102827fdb51f9591414165359c8e867f302)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[90579b69e94bf11ea0745ff003e82a6ce9725f96,8d6f98972fe2bd6f73f39d982af0c85d766a1503)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[90579b69e94bf11ea0745ff003e82a6ce9725f96,f0ea4824deebf21dacfbe397c4b0a5fd3e745a8d)"}}], "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": "generic", "value": "4.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.56,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.10,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "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": "2026-10-18T22:30:13.856151+00:00", "updated": "2026-10-22T21:15:12.499570+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}