CVE-2025-21916

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-21916", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.787Z", "datePublished": "2025-04-01T15:40:52.519Z", "dateUpdated": "2026-11-05T20:41:47.907Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:57:26.891Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: cxacru: fix a flaw in existing endpoint checks\n\nSyzbot once again identified a flaw in usb endpoint checking, see [1].\nThis time the issue stems from a commit authored by me (2eabb655a968\n(\"usb: atm: cxacru: fix endpoint checking in cxacru_bind()\")).\n\nWhile using usb_find_common_endpoints() may usually be enough to\ndiscard devices with wrong endpoints, in this case one needs more\nthan just finding and identifying the sufficient number of endpoints\nof correct types - one needs to check the endpoint's address as well.\n\nSince cxacru_bind() fills URBs with CXACRU_EP_CMD address in mind,\nswitch the endpoint verification approach to usb_check_XXX_endpoints()\ninstead to fix incomplete ep testing.\n\n[1] Syzbot report:\nusb 5-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 1378 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nRIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nCall Trace:\n <TASK>\n cxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649\n cxacru_card_status drivers/usb/atm/cxacru.c:760 [inline]\n cxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223\n usbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058\n cxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377\n usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396\n really_probe+0x2b9/0xad0 drivers/base/dd.c:658\n __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800\n driver_probe_device+0x50/0x430 drivers/base/dd.c:830\n..."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/atm/cxacru.c"], "versions": [{"version": "23926d316d2836315cb113569f91393266eb5b47", "lessThan": "dcd592ab9dd8a2bfc36e75583b9006db2a77ec24", "status": "affected", "versionType": "git"}, {"version": "75ddbf776dd04a09fb9e5267ead5d0c989f84506", "lessThan": "319529e0356bd904528c64647725a2272d297c83", "status": "affected", "versionType": "git"}, {"version": "1aac4be1aaa5177506219f01dce5e29194e5e95a", "lessThan": "bf4409f84023b52b5e9b36c0a071a121eee42138", "status": "affected", "versionType": "git"}, {"version": "5584c776a1af7807ca815ee6265f2c1429fc5727", "lessThan": "197e78076c5ecd895f109158c4ea2954b9919af6", "status": "affected", "versionType": "git"}, {"version": "f536f09eb45e4de8d1b9accee9d992aa1846f1d4", "lessThan": "a0475a885d69849b1ade38add6d64338dfa83a8f", "status": "affected", "versionType": "git"}, {"version": "2eabb655a968b862bc0c31629a09f0fbf3c80d51", "lessThan": "cfc295f7cccf66cbd5123416bcf1bee2e1bd37de", "status": "affected", "versionType": "git"}, {"version": "2eabb655a968b862bc0c31629a09f0fbf3c80d51", "lessThan": "903b80c21458bb1e34c3a78c5fdc553821e357f8", "status": "affected", "versionType": "git"}, {"version": "2eabb655a968b862bc0c31629a09f0fbf3c80d51", "lessThan": "c90aad369899a607cfbc002bebeafd51e31900cd", "status": "affected", "versionType": "git"}, {"version": "5159a81924311c1ec786ad9fdef784ead8676a6a", "status": "affected", "versionType": "git"}, {"version": "ac9007520e392541a29daebaae8b9109007bc781", "status": "affected", "versionType": "git"}, {"version": "5.4.279", "lessThan": "5.4.291", "status": "affected", "versionType": "semver"}, {"version": "5.10.221", "lessThan": "5.10.235", "status": "affected", "versionType": "semver"}, {"version": "5.15.162", "lessThan": "5.15.179", "status": "affected", "versionType": "semver"}, {"version": "6.1.97", "lessThan": "6.1.131", "status": "affected", "versionType": "semver"}, {"version": "6.6.37", "lessThan": "6.6.83", "status": "affected", "versionType": "semver"}, {"version": "4.19.317", "lessThan": "4.20", "status": "affected", "versionType": "semver"}, {"version": "6.9.8", "lessThan": "6.10", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/atm/cxacru.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.291", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.235", "lessThanOrEqual": "5.10.*", "status": 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"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.317"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9.8"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/dcd592ab9dd8a2bfc36e75583b9006db2a77ec24"}, {"url": "https://git.kernel.org/stable/c/319529e0356bd904528c64647725a2272d297c83"}, {"url": "https://git.kernel.org/stable/c/bf4409f84023b52b5e9b36c0a071a121eee42138"}, {"url": "https://git.kernel.org/stable/c/197e78076c5ecd895f109158c4ea2954b9919af6"}, {"url": "https://git.kernel.org/stable/c/a0475a885d69849b1ade38add6d64338dfa83a8f"}, {"url": "https://git.kernel.org/stable/c/cfc295f7cccf66cbd5123416bcf1bee2e1bd37de"}, {"url": "https://git.kernel.org/stable/c/903b80c21458bb1e34c3a78c5fdc553821e357f8"}, {"url": "https://git.kernel.org/stable/c/c90aad369899a607cfbc002bebeafd51e31900cd"}], "title": "usb: atm: cxacru: fix a flaw in existing endpoint checks", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:39:05.568Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-21916", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T20:36:54.452884Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-05T20:41:47.907Z"}}]}}

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"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "23926d316d2836315cb113569f91393266eb5b47", "lessThan": "dcd592ab9dd8a2bfc36e75583b9006db2a77ec24", "versionType": "git"}, {"status": "affected", "version": "75ddbf776dd04a09fb9e5267ead5d0c989f84506", "lessThan": "319529e0356bd904528c64647725a2272d297c83", "versionType": "git"}, {"status": "affected", "version": "1aac4be1aaa5177506219f01dce5e29194e5e95a", "lessThan": "bf4409f84023b52b5e9b36c0a071a121eee42138", "versionType": "git"}, {"status": "affected", "version": "5584c776a1af7807ca815ee6265f2c1429fc5727", "lessThan": "197e78076c5ecd895f109158c4ea2954b9919af6", "versionType": "git"}, {"status": "affected", "version": "f536f09eb45e4de8d1b9accee9d992aa1846f1d4", "lessThan": "a0475a885d69849b1ade38add6d64338dfa83a8f", "versionType": "git"}, {"status": "affected", "version": "2eabb655a968b862bc0c31629a09f0fbf3c80d51", "lessThan": 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"unaffected", "version": "6.6.83", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.19", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13.7", "versionType": "semver", "lessThanOrEqual": "6.13.*"}, {"status": "unaffected", "version": "6.14", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/usb/atm/cxacru.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/dcd592ab9dd8a2bfc36e75583b9006db2a77ec24"}, {"url": "https://git.kernel.org/stable/c/319529e0356bd904528c64647725a2272d297c83"}, {"url": "https://git.kernel.org/stable/c/bf4409f84023b52b5e9b36c0a071a121eee42138"}, {"url": "https://git.kernel.org/stable/c/197e78076c5ecd895f109158c4ea2954b9919af6"}, {"url": "https://git.kernel.org/stable/c/a0475a885d69849b1ade38add6d64338dfa83a8f"}, {"url": "https://git.kernel.org/stable/c/cfc295f7cccf66cbd5123416bcf1bee2e1bd37de"}, {"url": "https://git.kernel.org/stable/c/903b80c21458bb1e34c3a78c5fdc553821e357f8"}, {"url": "https://git.kernel.org/stable/c/c90aad369899a607cfbc002bebeafd51e31900cd"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: cxacru: fix a flaw in existing endpoint checks\n\nSyzbot once again identified a flaw in usb endpoint checking, see [1].\nThis time the issue stems from a commit authored by me (2eabb655a968\n(\"usb: atm: cxacru: fix endpoint checking in cxacru_bind()\")).\n\nWhile using usb_find_common_endpoints() may usually be enough to\ndiscard devices with wrong endpoints, in this case one needs more\nthan just finding and identifying the sufficient number of endpoints\nof correct types - one needs to check the endpoint's address as well.\n\nSince cxacru_bind() fills URBs with CXACRU_EP_CMD address in mind,\nswitch the endpoint verification approach to usb_check_XXX_endpoints()\ninstead to fix incomplete ep testing.\n\n[1] Syzbot report:\nusb 5-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 1378 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nRIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nCall Trace:\n <TASK>\n cxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649\n cxacru_card_status drivers/usb/atm/cxacru.c:760 [inline]\n cxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223\n usbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058\n cxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377\n usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396\n really_probe+0x2b9/0xad0 drivers/base/dd.c:658\n __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800\n driver_probe_device+0x50/0x430 drivers/base/dd.c:830\n..."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": 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"6.1.131", "status": "affected", "version": "6.1.97", "versionType": "semver"}, {"lessThan": "6.6.83", "status": "affected", "version": "6.6.37", "versionType": "semver"}, {"lessThan": "4.20", "status": "affected", "version": "4.19.317", "versionType": "semver"}, {"lessThan": "6.10", "status": "affected", "version": "6.9.8", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/atm/cxacru.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.291", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.235", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.179", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.131", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.83", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.19", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.14", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DBCC7CEA-15C0-47C4-8D3B-10F7FF0BEBA3", "versionEndExcluding": "4.20", "versionStartIncluding": "4.19.317", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "11E1BD30-3F97-4B56-AD8B-8751ED8233DD", "versionEndExcluding": "5.4.291", 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"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*", "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*", "matchCriteriaId": "66619FB8-0AAF-4166-B2CF-67B24143261D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*", "matchCriteriaId": "D3D6550E-6679-4560-902D-AF52DCFE905B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*", "matchCriteriaId": "45B90F6B-BEC7-4D4E-883A-9DBADE021750", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: cxacru: fix a flaw in existing endpoint checks\n\nSyzbot once again identified a flaw in usb endpoint checking, see [1].\nThis time the issue stems from a commit authored by me (2eabb655a968\n(\"usb: atm: cxacru: fix endpoint checking in cxacru_bind()\")).\n\nWhile using usb_find_common_endpoints() may usually be enough to\ndiscard devices with wrong endpoints, in this case one needs more\nthan just finding and identifying the sufficient number of endpoints\nof correct types - one needs to check the endpoint's address as well.\n\nSince cxacru_bind() fills URBs with CXACRU_EP_CMD address in mind,\nswitch the endpoint verification approach to usb_check_XXX_endpoints()\ninstead to fix incomplete ep testing.\n\n[1] Syzbot report:\nusb 5-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 1378 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nRIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nCall Trace:\n <TASK>\n cxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649\n cxacru_card_status drivers/usb/atm/cxacru.c:760 [inline]\n cxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223\n usbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058\n cxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377\n usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396\n really_probe+0x2b9/0xad0 drivers/base/dd.c:658\n __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800\n driver_probe_device+0x50/0x430 drivers/base/dd.c:830\n..."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: atm: cxacru: corrige un fallo en las comprobaciones de endpoints existentes Syzbot volvi\u00f3 a identificar un fallo en la comprobaci\u00f3n de endpoints USB, consulte [1]. Esta vez, el problema se debe a una confirmaci\u00f3n de mi autor\u00eda (2eabb655a968 (\"usb: atm: cxacru: fix endpoint checking in cxacru_bind()\")). Si bien usar usb_find_common_endpoints() suele ser suficiente para descartar dispositivos con endpoints err\u00f3neos, en este caso se necesita m\u00e1s que simplemente encontrar e identificar la cantidad suficiente de endpoints de los tipos correctos: tambi\u00e9n se necesita comprobar la direcci\u00f3n del endpoint. Dado que cxacru_bind() rellena las URB teniendo en cuenta la direcci\u00f3n CXACRU_EP_CMD, cambie el enfoque de verificaci\u00f3n de endpoints a usb_check_XXX_endpoints() para corregir las pruebas de EP incompletas. [1] Informe de Syzbot: usb 5-1: transferencia de urb FALSA, canal 3 != tipo 1 ADVERTENCIA: CPU: 0 PID: 1378 en drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... RIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... Seguimiento de llamadas cxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649 cxacru_card_status drivers/usb/atm/cxacru.c:760 [inline] cxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223 usbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058 cxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377 usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 ... "}], "id": "CVE-2025-21916", "lastModified": "2026-11-05T21:17:46.333", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-21916", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:36:54.452884Z", "version": "2.0.3"}}]}, "published": "2025-04-01T16:15:22.223", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/197e78076c5ecd895f109158c4ea2954b9919af6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/319529e0356bd904528c64647725a2272d297c83"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/903b80c21458bb1e34c3a78c5fdc553821e357f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a0475a885d69849b1ade38add6d64338dfa83a8f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bf4409f84023b52b5e9b36c0a071a121eee42138"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c90aad369899a607cfbc002bebeafd51e31900cd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cfc295f7cccf66cbd5123416bcf1bee2e1bd37de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dcd592ab9dd8a2bfc36e75583b9006db2a77ec24"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: usb: atm: cxacru: fix a flaw in existing endpoint checks", "id": "2356615", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2356615"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nusb: atm: cxacru: fix a flaw in existing endpoint checks\nSyzbot once again identified a flaw in usb endpoint checking, see [1].\nThis time the issue stems from a commit authored by me (2eabb655a968\n(\"usb: atm: cxacru: fix endpoint checking in cxacru_bind()\")).\nWhile using usb_find_common_endpoints() may usually be enough to\ndiscard devices with wrong endpoints, in this case one needs more\nthan just finding and identifying the sufficient number of endpoints\nof correct types - one needs to check the endpoint's address as well.\nSince cxacru_bind() fills URBs with CXACRU_EP_CMD address in mind,\nswitch the endpoint verification approach to usb_check_XXX_endpoints()\ninstead to fix incomplete ep testing.\n[1] Syzbot report:\nusb 5-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 1378 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nRIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503\n...\nCall Trace:\n<TASK>\ncxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649\ncxacru_card_status drivers/usb/atm/cxacru.c:760 [inline]\ncxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223\nusbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058\ncxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377\nusb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396\nreally_probe+0x2b9/0xad0 drivers/base/dd.c:658\n__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800\ndriver_probe_device+0x50/0x430 drivers/base/dd.c:830\n..."], "name": "CVE-2025-21916", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "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": "2025-04-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21916\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21916\nhttps://lore.kernel.org/linux-cve-announce/2025040131-CVE-2025-21916-28b9@gregkh/T"], "threat_severity": "Low"}

{}