CVE-2026-64498

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64498", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.792Z", "datePublished": "2026-07-25T08:51:54.625Z", "dateUpdated": "2026-08-17T04:56:47.022Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:56:47.022Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: hw-consumer: free scan_mask on buffer release\n\nThe scan_mask lifetime changed in commit 9a2e1233d38c (\"iio: buffer:\nhw-consumer: remove redundant scan_mask flexible array\").\n\nBefore that change, the scan mask storage was embedded in struct\nhw_consumer_buffer, so iio_hw_buf_release() could free the whole\nallocation with a single kfree(hw_buf).\n\nThat commit moved the scan mask to a separate bitmap_zalloc() allocation\nstored in buffer.scan_mask, but left iio_hw_buf_release() unchanged.\n\nFree the scan mask in iio_hw_buf_release() before freeing the buffer\nwrapper."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/buffer/industrialio-hw-consumer.c"], "versions": [{"version": "9a2e1233d38c460ad07f36901931f3674a32d1ed", "lessThan": "fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71", "status": "affected", "versionType": "git"}, {"version": "9a2e1233d38c460ad07f36901931f3674a32d1ed", "lessThan": "6325d6e2204327965b849c0a16efb6ac9202e5a8", "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/buffer/industrialio-hw-consumer.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.4", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "7.1", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71"}, {"url": "https://git.kernel.org/stable/c/6325d6e2204327965b849c0a16efb6ac9202e5a8"}], "title": "iio: buffer: hw-consumer: free scan_mask on buffer release", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iio/buffer/industrialio-hw-consumer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71", "status": "affected", "version": "9a2e1233d38c460ad07f36901931f3674a32d1ed", "versionType": "git"}, {"lessThan": "6325d6e2204327965b849c0a16efb6ac9202e5a8", "status": "affected", "version": "9a2e1233d38c460ad07f36901931f3674a32d1ed", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iio/buffer/industrialio-hw-consumer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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: buffer: hw-consumer: free scan_mask on buffer release\n\nThe scan_mask lifetime changed in commit 9a2e1233d38c (\"iio: buffer:\nhw-consumer: remove redundant scan_mask flexible array\").\n\nBefore that change, the scan mask storage was embedded in struct\nhw_consumer_buffer, so iio_hw_buf_release() could free the whole\nallocation with a single kfree(hw_buf).\n\nThat commit moved the scan mask to a separate bitmap_zalloc() allocation\nstored in buffer.scan_mask, but left iio_hw_buf_release() unchanged.\n\nFree the scan mask in iio_hw_buf_release() before freeing the buffer\nwrapper."}], "id": "CVE-2026-64498", "lastModified": "2026-11-03T18:15:39.353", "metrics": {}, "published": "2026-07-25T10:17:35.753", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6325d6e2204327965b849c0a16efb6ac9202e5a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: iio: buffer: hw-consumer: free scan_mask on buffer release", "id": "2507124", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507124"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's Industrial I/O (IIO) subsystem, specifically within the hardware consumer buffer (hw-consumer). Due to an oversight in memory management, a dedicated memory region (scan_mask) was not properly released when its associated buffer was freed. A local attacker with low privileges could exploit this memory leak, potentially leading to system instability or a denial of service (DoS) by exhausting available memory resources."], "name": "CVE-2026-64498", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64498\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64498\nhttps://lore.kernel.org/linux-cve-announce/2026072552-CVE-2026-64498-aa0a@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9a2e1233d38c460ad07f36901931f3674a32d1ed,fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9a2e1233d38c460ad07f36901931f3674a32d1ed,6325d6e2204327965b849c0a16efb6ac9202e5a8)"}}], "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": "7.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-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": "2026-07-26T01:00:04.300901+00:00", "updated": "2026-08-04T14:30:10.613765+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}