{ "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": "2026-05-23T15:57:26.891Z" }, "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 \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": "unaffected", "versionType": "semver" }, { "version": "5.15.179", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.131", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.83", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.19", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.7", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "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": "5.4.279", "versionEndExcluding": "5.4.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.221", "versionEndExcluding": "5.10.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.162", "versionEndExcluding": "5.15.179" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.97", "versionEndExcluding": "6.1.131" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.37", "versionEndExcluding": "6.6.83" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.12.19" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.13.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.14" }, { "vulnerable": true, "criteria": "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" } } ] } }