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vuln-cve/data/2022/49xxx/CVE-2022-49501.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2022-49501",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-02-26T02:08:31.586Z",
"datePublished": "2025-02-26T02:13:34.885Z",
"dateUpdated": "2026-05-11T19:01:08.248Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T19:01:08.248Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet: Run unregister_netdev() before unbind() again\n\nCommit 2c9d6c2b871d (\"usbnet: run unbind() before unregister_netdev()\")\nsought to fix a use-after-free on disconnect of USB Ethernet adapters.\n\nIt turns out that a different fix is necessary to address the issue:\nhttps://lore.kernel.org/netdev/18b3541e5372bc9b9fc733d422f4e698c089077c.1650177997.git.lukas@wunner.de/\n\nSo the commit was not necessary.\n\nThe commit made binding and unbinding of USB Ethernet asymmetrical:\nBefore, usbnet_probe() first invoked the ->bind() callback and then\nregister_netdev(). usbnet_disconnect() mirrored that by first invoking\nunregister_netdev() and then ->unbind().\n\nSince the commit, the order in usbnet_disconnect() is reversed and no\nlonger mirrors usbnet_probe().\n\nOne consequence is that a PHY disconnected (and stopped) in ->unbind()\nis afterwards stopped once more by unregister_netdev() as it closes the\nnetdev before unregistering. That necessitates a contortion in ->stop()\nbecause the PHY may only be stopped if it hasn't already been\ndisconnected.\n\nReverting the commit allows making the call to phy_stop() unconditional\nin ->stop()."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/usb/asix_devices.c",
"drivers/net/usb/smsc95xx.c",
"drivers/net/usb/usbnet.c"
],
"versions": [
{
"version": "2c9d6c2b871d5841ce26ede3e81fd37e2e33c42c",
"lessThan": "6d5deb242874d924beccf7eb3cef04c1c3b0da79",
"status": "affected",
"versionType": "git"
},
{
"version": "2c9d6c2b871d5841ce26ede3e81fd37e2e33c42c",
"lessThan": "fbda837107f9bd4ec658d2aa88c6856dba606f06",
"status": "affected",
"versionType": "git"
},
{
"version": "2c9d6c2b871d5841ce26ede3e81fd37e2e33c42c",
"lessThan": "969a1b3ea3cb7d58a16fe12fd1b04bfc0ea40509",
"status": "affected",
"versionType": "git"
},
{
"version": "2c9d6c2b871d5841ce26ede3e81fd37e2e33c42c",
"lessThan": "d1408f6b4dd78fb1b9e26bcf64477984e5f85409",
"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/asix_devices.c",
"drivers/net/usb/smsc95xx.c",
"drivers/net/usb/usbnet.c"
],
"versions": [
{
"version": "5.14",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.14",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.46",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.17.14",
"lessThanOrEqual": "5.17.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.18.3",
"lessThanOrEqual": "5.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.19",
"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": "5.14",
"versionEndExcluding": "5.15.46"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.14",
"versionEndExcluding": "5.17.14"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.14",
"versionEndExcluding": "5.18.3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.14",
"versionEndExcluding": "5.19"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/6d5deb242874d924beccf7eb3cef04c1c3b0da79"
},
{
"url": "https://git.kernel.org/stable/c/fbda837107f9bd4ec658d2aa88c6856dba606f06"
},
{
"url": "https://git.kernel.org/stable/c/969a1b3ea3cb7d58a16fe12fd1b04bfc0ea40509"
},
{
"url": "https://git.kernel.org/stable/c/d1408f6b4dd78fb1b9e26bcf64477984e5f85409"
}
],
"title": "usbnet: Run unregister_netdev() before unbind() again",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2022-49501",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-02-27T18:15:41.764586Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-416",
"description": "CWE-416 Use After Free"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-02-27T18:22:32.026Z"
}
}
]
}
}