CVE-2021-47102
Vulnerability from cvelistv5
Published
2024-03-04 18:10
Modified
2024-08-04 05:24
Severity
Summary
net: marvell: prestera: fix incorrect structure access
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-47102",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-03-05T16:07:00.454829Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-04T17:15:11.035Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:24:39.915Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/5c553a0cd1263e4da5f220d80fa713fc3959c1d0"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/2efc2256febf214e7b2bdaa21fe6c3c3146acdcb"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/marvell/prestera/prestera_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5c553a0cd126",
"status": "affected",
"version": "3d5048cc54bd",
"versionType": "git"
},
{
"lessThan": "2efc2256febf",
"status": "affected",
"version": "3d5048cc54bd",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/marvell/prestera/prestera_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.14"
},
{
"lessThan": "5.14",
"status": "unaffected",
"version": "0",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.12",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: marvell: prestera: fix incorrect structure access\n\nIn line:\n\tupper = info-\u003eupper_dev;\nWe access upper_dev field, which is related only for particular events\n(e.g. event == NETDEV_CHANGEUPPER). So, this line cause invalid memory\naccess for another events,\nwhen ptr is not netdev_notifier_changeupper_info.\n\nThe KASAN logs are as follows:\n\n[ 30.123165] BUG: KASAN: stack-out-of-bounds in prestera_netdev_port_event.constprop.0+0x68/0x538 [prestera]\n[ 30.133336] Read of size 8 at addr ffff80000cf772b0 by task udevd/778\n[ 30.139866]\n[ 30.141398] CPU: 0 PID: 778 Comm: udevd Not tainted 5.16.0-rc3 #6\n[ 30.147588] Hardware name: DNI AmazonGo1 A7040 board (DT)\n[ 30.153056] Call trace:\n[ 30.155547] dump_backtrace+0x0/0x2c0\n[ 30.159320] show_stack+0x18/0x30\n[ 30.162729] dump_stack_lvl+0x68/0x84\n[ 30.166491] print_address_description.constprop.0+0x74/0x2b8\n[ 30.172346] kasan_report+0x1e8/0x250\n[ 30.176102] __asan_load8+0x98/0xe0\n[ 30.179682] prestera_netdev_port_event.constprop.0+0x68/0x538 [prestera]\n[ 30.186847] prestera_netdev_event_handler+0x1b4/0x1c0 [prestera]\n[ 30.193313] raw_notifier_call_chain+0x74/0xa0\n[ 30.197860] call_netdevice_notifiers_info+0x68/0xc0\n[ 30.202924] register_netdevice+0x3cc/0x760\n[ 30.207190] register_netdev+0x24/0x50\n[ 30.211015] prestera_device_register+0x8a0/0xba0 [prestera]"
}
],
"providerMetadata": {
"dateUpdated": "2024-05-29T05:02:08.799Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/5c553a0cd1263e4da5f220d80fa713fc3959c1d0"
},
{
"url": "https://git.kernel.org/stable/c/2efc2256febf214e7b2bdaa21fe6c3c3146acdcb"
}
],
"title": "net: marvell: prestera: fix incorrect structure access",
"x_generator": {
"engine": "bippy-a5840b7849dd"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2021-47102",
"datePublished": "2024-03-04T18:10:56.018Z",
"dateReserved": "2024-02-29T22:33:44.301Z",
"dateUpdated": "2024-08-04T05:24:39.915Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2021-47102\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-04T18:15:08.600\",\"lastModified\":\"2024-03-05T13:41:01.900\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: marvell: prestera: fix incorrect structure access\\n\\nIn line:\\n\\tupper = info-\u003eupper_dev;\\nWe access upper_dev field, which is related only for particular events\\n(e.g. event == NETDEV_CHANGEUPPER). So, this line cause invalid memory\\naccess for another events,\\nwhen ptr is not netdev_notifier_changeupper_info.\\n\\nThe KASAN logs are as follows:\\n\\n[ 30.123165] BUG: KASAN: stack-out-of-bounds in prestera_netdev_port_event.constprop.0+0x68/0x538 [prestera]\\n[ 30.133336] Read of size 8 at addr ffff80000cf772b0 by task udevd/778\\n[ 30.139866]\\n[ 30.141398] CPU: 0 PID: 778 Comm: udevd Not tainted 5.16.0-rc3 #6\\n[ 30.147588] Hardware name: DNI AmazonGo1 A7040 board (DT)\\n[ 30.153056] Call trace:\\n[ 30.155547] dump_backtrace+0x0/0x2c0\\n[ 30.159320] show_stack+0x18/0x30\\n[ 30.162729] dump_stack_lvl+0x68/0x84\\n[ 30.166491] print_address_description.constprop.0+0x74/0x2b8\\n[ 30.172346] kasan_report+0x1e8/0x250\\n[ 30.176102] __asan_load8+0x98/0xe0\\n[ 30.179682] prestera_netdev_port_event.constprop.0+0x68/0x538 [prestera]\\n[ 30.186847] prestera_netdev_event_handler+0x1b4/0x1c0 [prestera]\\n[ 30.193313] raw_notifier_call_chain+0x74/0xa0\\n[ 30.197860] call_netdevice_notifiers_info+0x68/0xc0\\n[ 30.202924] register_netdevice+0x3cc/0x760\\n[ 30.207190] register_netdev+0x24/0x50\\n[ 30.211015] prestera_device_register+0x8a0/0xba0 [prestera]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: net:marvell:prestera: corrige el acceso a la estructura incorrecta En l\u00ednea: superior = info-\u0026gt;upper_dev; Accedemos al campo Upper_dev, que est\u00e1 relacionado s\u00f3lo para eventos particulares (por ejemplo, evento == NETDEV_CHANGEUPPER). Entonces, esta l\u00ednea causa un acceso no v\u00e1lido a la memoria para otros eventos, cuando ptr no es netdev_notifier_changeupper_info. Los registros de KASAN son los siguientes: [30.123165] ERROR: KASAN: pila fuera de los l\u00edmites en prestera_netdev_port_event.constprop.0+0x68/0x538 [prestera] [30.133336] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff80000cf772b0 mediante tarea udevd/778 [ 0x0/0 x2c0 [ 30.159320] show_stack+0x18/0x30 [ 30.162729] dump_stack_lvl+0x68/0x84 [ 30.166491] print_address_description.constprop.0+0x74/0x2b8 [ 30.172346] kasan_report+0x1e8/0x250 [ 3 0.176102] __asan_load8+0x98/0xe0 [ 30.179682] prestera_netdev_port_event.constprop .0+0x68/0x538 [prestera] [ 30.186847] prestera_netdev_event_handler+0x1b4/0x1c0 [prestera] [ 30.193313] raw_notifier_call_chain+0x74/0xa0 [ 30.197860] call_netdevice_notifiers_info+0x68/0xc0 [ 30.202924] registro_netdevice+0x3cc/0x760 [ 30.207190] registro_netdev+0x24 /0x50 [ 30.211015] prestera_device_register+0x8a0/0xba0 [prestera]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2efc2256febf214e7b2bdaa21fe6c3c3146acdcb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5c553a0cd1263e4da5f220d80fa713fc3959c1d0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
Loading...