CVE-2026-64145

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64145", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.037Z", "datePublished": "2026-07-19T15:40:36.767Z", "dateUpdated": "2026-07-19T15:40:36.767Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:40:36.767Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: fix dma_buffer leak on bus acquire failure\n\nwilc_wlan_firmware_download() allocates dma_buffer with kmalloc() at\nthe top of the function and uses a 'fail:' label to free it via\nkfree(dma_buffer) on error.\n\nAll later error paths correctly use 'goto fail' to route through this\ncleanup. However, the early failure path after the first acquire_bus()\ncall uses a bare 'return ret;', which leaks dma_buffer whenever the bus\nacquire fails.\n\nReplace the early return with goto fail so the existing cleanup path\nruns.\n\nFound via a custom Coccinelle semantic patch hunting for kmalloc'd\nlocals leaked on early-return error paths in driver firmware-download\ncode."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/microchip/wilc1000/wlan.c"], "versions": [{"version": "1241c5650ff7a0236cebb89acca8aade48839fd6", "lessThan": "95c82d498d74c4e587db30021ca1aec90e29b5a5", "status": "affected", "versionType": "git"}, {"version": "1241c5650ff7a0236cebb89acca8aade48839fd6", "lessThan": "32d7584441b9ecb279a03653b432612546e5efbe", "status": "affected", "versionType": "git"}, {"version": "1241c5650ff7a0236cebb89acca8aade48839fd6", "lessThan": "dd7b6a8671939708cc4b7a46786d8c11297e8f69", "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/net/wireless/microchip/wilc1000/wlan.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.13", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/95c82d498d74c4e587db30021ca1aec90e29b5a5"}, {"url": "https://git.kernel.org/stable/c/32d7584441b9ecb279a03653b432612546e5efbe"}, {"url": "https://git.kernel.org/stable/c/dd7b6a8671939708cc4b7a46786d8c11297e8f69"}], "title": "wifi: wilc1000: fix dma_buffer leak on bus acquire failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/microchip/wilc1000/wlan.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "95c82d498d74c4e587db30021ca1aec90e29b5a5", "status": "affected", "version": "1241c5650ff7a0236cebb89acca8aade48839fd6", "versionType": "git"}, {"lessThan": "32d7584441b9ecb279a03653b432612546e5efbe", "status": "affected", "version": "1241c5650ff7a0236cebb89acca8aade48839fd6", "versionType": "git"}, {"lessThan": "dd7b6a8671939708cc4b7a46786d8c11297e8f69", "status": "affected", "version": "1241c5650ff7a0236cebb89acca8aade48839fd6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/microchip/wilc1000/wlan.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.34", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A4B1EF6D-18D7-4838-BC37-7499D5DCC3C0", "versionEndExcluding": "6.18.34", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0520D091-FC52-4A50-AF07-70AE7D08B750", "versionEndExcluding": "7.0.11", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*", "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: fix dma_buffer leak on bus acquire failure\n\nwilc_wlan_firmware_download() allocates dma_buffer with kmalloc() at\nthe top of the function and uses a 'fail:' label to free it via\nkfree(dma_buffer) on error.\n\nAll later error paths correctly use 'goto fail' to route through this\ncleanup. However, the early failure path after the first acquire_bus()\ncall uses a bare 'return ret;', which leaks dma_buffer whenever the bus\nacquire fails.\n\nReplace the early return with goto fail so the existing cleanup path\nruns.\n\nFound via a custom Coccinelle semantic patch hunting for kmalloc'd\nlocals leaked on early-return error paths in driver firmware-download\ncode."}], "id": "CVE-2026-64145", "lastModified": "2026-08-17T19:39:19.187", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-07-19T16:17:56.443", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/32d7584441b9ecb279a03653b432612546e5efbe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/95c82d498d74c4e587db30021ca1aec90e29b5a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dd7b6a8671939708cc4b7a46786d8c11297e8f69"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: wilc1000: fix dma_buffer leak on bus acquire failure", "id": "2502524", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502524"}, "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-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: wilc1000: fix dma_buffer leak on bus acquire failure\nwilc_wlan_firmware_download() allocates dma_buffer with kmalloc() at\nthe top of the function and uses a 'fail:' label to free it via\nkfree(dma_buffer) on error.\nAll later error paths correctly use 'goto fail' to route through this\ncleanup. However, the early failure path after the first acquire_bus()\ncall uses a bare 'return ret;', which leaks dma_buffer whenever the bus\nacquire fails.\nReplace the early return with goto fail so the existing cleanup path\nruns.\nFound via a custom Coccinelle semantic patch hunting for kmalloc'd\nlocals leaked on early-return error paths in driver firmware-download\ncode.", "A flaw was found in the Linux kernel's wilc1000 Wi-Fi driver. This vulnerability occurs during the firmware download process when the system fails to properly acquire the bus. An error in the code's cleanup path causes a Direct Memory Access (DMA) buffer to not be released, resulting in a memory leak. Over time, repeated occurrences of this leak could lead to system instability or a denial of service by exhausting available memory resources."], "name": "CVE-2026-64145", "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:hummingbird:1", "fix_state": "Not affected", "impact": "important", "package_name": "erlang27", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64145\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64145\nhttps://lore.kernel.org/linux-cve-announce/2026071930-CVE-2026-64145-e585@gregkh/T"], "threat_severity": "Low"}

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