{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38533", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.023Z", "datePublished": "2025-08-16T11:12:25.978Z", "dateUpdated": "2025-08-16T11:12:25.978Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-08-16T11:12:25.978Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: fix the using of Rx buffer DMA\n\nThe wx_rx_buffer structure contained two DMA address fields: 'dma' and\n'page_dma'. However, only 'page_dma' was actually initialized and used\nto program the Rx descriptor. But 'dma' was uninitialized and used in\nsome paths.\n\nThis could lead to undefined behavior, including DMA errors or\nuse-after-free, if the uninitialized 'dma' was used. Althrough such\nerror has not yet occurred, it is worth fixing in the code."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/wangxun/libwx/wx_lib.c", "drivers/net/ethernet/wangxun/libwx/wx_type.h"], "versions": [{"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "027701180a7bcb64c42eab291133ef0c87b5b6c5", "status": "affected", "versionType": "git"}, {"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "ba7c793f96c1c2b944bb6f423d7243f3afc30fe9", "status": "affected", "versionType": "git"}, {"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "05c37b574997892a40a0e9b9b88a481566b2367d", "status": "affected", "versionType": "git"}, {"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "5fd77cc6bd9b368431a815a780e407b7781bcca0", "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/ethernet/wangxun/libwx/wx_lib.c", "drivers/net/ethernet/wangxun/libwx/wx_type.h"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.100", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.40", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.8", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16", "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": "6.3", "versionEndExcluding": "6.6.100"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.15.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/027701180a7bcb64c42eab291133ef0c87b5b6c5"}, {"url": "https://git.kernel.org/stable/c/ba7c793f96c1c2b944bb6f423d7243f3afc30fe9"}, {"url": "https://git.kernel.org/stable/c/05c37b574997892a40a0e9b9b88a481566b2367d"}, {"url": "https://git.kernel.org/stable/c/5fd77cc6bd9b368431a815a780e407b7781bcca0"}], "title": "net: libwx: fix the using of Rx buffer DMA", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: fix the using of Rx buffer DMA\n\nThe wx_rx_buffer structure contained two DMA address fields: 'dma' and\n'page_dma'. However, only 'page_dma' was actually initialized and used\nto program the Rx descriptor. But 'dma' was uninitialized and used in\nsome paths.\n\nThis could lead to undefined behavior, including DMA errors or\nuse-after-free, if the uninitialized 'dma' was used. Althrough such\nerror has not yet occurred, it is worth fixing in the code."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: libwx: correcci\u00f3n del uso del DMA del b\u00fafer Rx. La estructura wx_rx_buffer conten\u00eda dos campos de direcci\u00f3n DMA: 'dma' y 'page_dma'. Sin embargo, solo 'page_dma' se inicializ\u00f3 y se utiliz\u00f3 para programar el descriptor Rx. Sin embargo, 'dma' no se inicializ\u00f3 y se utiliz\u00f3 en algunas rutas. Esto podr\u00eda provocar un comportamiento indefinido, incluyendo errores de DMA o use after free, si se utilizaba 'dma' sin inicializar. Si bien este error a\u00fan no se ha producido, conviene corregirlo en el c\u00f3digo."}], "id": "CVE-2025-38533", "lastModified": "2025-08-18T20:16:28.750", "metrics": {}, "published": "2025-08-16T12:15:28.957", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/027701180a7bcb64c42eab291133ef0c87b5b6c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/05c37b574997892a40a0e9b9b88a481566b2367d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5fd77cc6bd9b368431a815a780e407b7781bcca0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba7c793f96c1c2b944bb6f423d7243f3afc30fe9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: net: libwx: fix the using of Rx buffer DMA", "id": "2388946", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2388946"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: libwx: fix the using of Rx buffer DMA\nThe wx_rx_buffer structure contained two DMA address fields: 'dma' and\n'page_dma'. However, only 'page_dma' was actually initialized and used\nto program the Rx descriptor. But 'dma' was uninitialized and used in\nsome paths.\nThis could lead to undefined behavior, including DMA errors or\nuse-after-free, if the uninitialized 'dma' was used. Althrough such\nerror has not yet occurred, it is worth fixing in the code."], "name": "CVE-2025-38533", "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": "2025-08-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38533\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38533\nhttps://lore.kernel.org/linux-cve-announce/2025081656-CVE-2025-38533-6002@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-08-18T20:50:10.519904+00:00", "updated": "2025-08-18T20:50:10.519977+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}