{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68312", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.294Z", "datePublished": "2025-12-16T15:39:43.174Z", "dateUpdated": "2025-12-16T15:39:43.174Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-16T15:39:43.174Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet: Prevents free active kevent\n\nThe root cause of this issue are:\n1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0);\nput the kevent work in global workqueue. However, the kevent has not yet\nbeen scheduled when the usbnet device is unregistered. Therefore, executing\nfree_netdev() results in the \"free active object (kevent)\" error reported\nhere.\n\n2. Another factor is that when calling usbnet_disconnect()->unregister_netdev(),\nif the usbnet device is up, ndo_stop() is executed to cancel the kevent.\nHowever, because the device is not up, ndo_stop() is not executed.\n\nThe solution to this problem is to cancel the kevent before executing\nfree_netdev()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/usb/usbnet.c"], "versions": [{"version": "8b4588b8b00b299be16a35be67b331d8fdba03f3", "lessThan": "285d4b953f2ca03c358f986718dd89ee9bde632e", "status": "affected", "versionType": "git"}, {"version": "135199a2edd459d2b123144efcd7f9bcd95128e4", "lessThan": "88a38b135d69f5db9024ff6527232f1b51be8915", "status": "affected", "versionType": "git"}, {"version": "635fd8953e4309b54ca6a81bed1d4a87668694f4", "lessThan": "43005002b60ef3424719ecda16d124714b45da3b", "status": "affected", "versionType": "git"}, {"version": "a69e617e533edddf3fa3123149900f36e0a6dc74", "lessThan": "3a10619fdefd3051aeb14860e4d4335529b4e94d", "status": "affected", "versionType": "git"}, {"version": "a69e617e533edddf3fa3123149900f36e0a6dc74", "lessThan": "9a579d6a39513069d298eee70770bbac8a148565", "status": "affected", "versionType": "git"}, {"version": "a69e617e533edddf3fa3123149900f36e0a6dc74", "lessThan": "2ce1de32e05445d77fc056f6ff8339cfb78a5f84", "status": "affected", "versionType": "git"}, {"version": "a69e617e533edddf3fa3123149900f36e0a6dc74", "lessThan": "5158fb8da162e3982940f30cd01ed77bdf42c6fc", "status": "affected", "versionType": "git"}, {"version": "a69e617e533edddf3fa3123149900f36e0a6dc74", "lessThan": "420c84c330d1688b8c764479e5738bbdbf0a33de", "status": "affected", "versionType": "git"}, {"version": "d2d6b530d89b0a912148018027386aa049f0a309", "status": "affected", "versionType": "git"}, {"version": "e2a521a7dcc463c5017b4426ca0804e151faeff7", "status": "affected", "versionType": "git"}, {"version": "7f77dcbc030c2faa6d8e8a594985eeb34018409e", "status": "affected", "versionType": "git"}, {"version": "d49bb8cf9bfaa06aa527eb30f1a52a071da2e32f", "status": "affected", "versionType": "git"}, {"version": "db3b738ae5f726204876f4303c49cfdf4311403f", "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/usb/usbnet.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.302", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.247", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.197", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.159", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.117", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.58", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.8", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18", "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": "5.4.211", "versionEndExcluding": "5.4.302"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.137", "versionEndExcluding": "5.10.247"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.61", "versionEndExcluding": "5.15.197"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.159"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.117"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.58"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.17.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.326"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.291"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.256"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18.18"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/285d4b953f2ca03c358f986718dd89ee9bde632e"}, {"url": "https://git.kernel.org/stable/c/88a38b135d69f5db9024ff6527232f1b51be8915"}, {"url": "https://git.kernel.org/stable/c/43005002b60ef3424719ecda16d124714b45da3b"}, {"url": "https://git.kernel.org/stable/c/3a10619fdefd3051aeb14860e4d4335529b4e94d"}, {"url": "https://git.kernel.org/stable/c/9a579d6a39513069d298eee70770bbac8a148565"}, {"url": "https://git.kernel.org/stable/c/2ce1de32e05445d77fc056f6ff8339cfb78a5f84"}, {"url": "https://git.kernel.org/stable/c/5158fb8da162e3982940f30cd01ed77bdf42c6fc"}, {"url": "https://git.kernel.org/stable/c/420c84c330d1688b8c764479e5738bbdbf0a33de"}], "title": "usbnet: Prevents free active kevent", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet: Prevents free active kevent\n\nThe root cause of this issue are:\n1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0);\nput the kevent work in global workqueue. However, the kevent has not yet\nbeen scheduled when the usbnet device is unregistered. Therefore, executing\nfree_netdev() results in the \"free active object (kevent)\" error reported\nhere.\n\n2. Another factor is that when calling usbnet_disconnect()->unregister_netdev(),\nif the usbnet device is up, ndo_stop() is executed to cancel the kevent.\nHowever, because the device is not up, ndo_stop() is not executed.\n\nThe solution to this problem is to cancel the kevent before executing\nfree_netdev()."}], "id": "CVE-2025-68312", "lastModified": "2025-12-16T16:16:10.770", "metrics": {}, "published": "2025-12-16T16:16:10.770", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/285d4b953f2ca03c358f986718dd89ee9bde632e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2ce1de32e05445d77fc056f6ff8339cfb78a5f84"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3a10619fdefd3051aeb14860e4d4335529b4e94d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/420c84c330d1688b8c764479e5738bbdbf0a33de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/43005002b60ef3424719ecda16d124714b45da3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5158fb8da162e3982940f30cd01ed77bdf42c6fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88a38b135d69f5db9024ff6527232f1b51be8915"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9a579d6a39513069d298eee70770bbac8a148565"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}