CVE-2024-26698
Vulnerability from cvelistv5
Published
2024-04-03 14:54
Modified
2024-11-05 09:14
Severity ?
EPSS score ?
Summary
hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove
References
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-26698",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-04-03T18:03:45.740958Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-04T17:49:08.824Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T00:14:12.951Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/9ec807e7b6f5fcf9499f3baa69f254bb239a847f"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/7656372ae190e54e8c8cf1039725a5ea59fdf84a"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/48a8ccccffbae10c91d31fc872db5c31aba07518"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/22a77c0f5b8233237731df3288d067af51a2fd7b"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/0e8875de9dad12805ff66e92cd5edea6a421f1cd"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/e0526ec5360a48ad3ab2e26e802b0532302a7e11"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/hyperv/netvsc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9ec807e7b6f5",
"status": "affected",
"version": "ac5047671758",
"versionType": "git"
},
{
"lessThan": "7656372ae190",
"status": "affected",
"version": "ac5047671758",
"versionType": "git"
},
{
"lessThan": "48a8ccccffba",
"status": "affected",
"version": "ac5047671758",
"versionType": "git"
},
{
"lessThan": "22a77c0f5b82",
"status": "affected",
"version": "ac5047671758",
"versionType": "git"
},
{
"lessThan": "0e8875de9dad",
"status": "affected",
"version": "ac5047671758",
"versionType": "git"
},
{
"lessThan": "e0526ec5360a",
"status": "affected",
"version": "ac5047671758",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/hyperv/netvsc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"lessThan": "5.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.149",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.79",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.18",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Fix race condition between netvsc_probe and netvsc_remove\n\nIn commit ac5047671758 (\"hv_netvsc: Disable NAPI before closing the\nVMBus channel\"), napi_disable was getting called for all channels,\nincluding all subchannels without confirming if they are enabled or not.\n\nThis caused hv_netvsc getting hung at napi_disable, when netvsc_probe()\nhas finished running but nvdev-\u003esubchan_work has not started yet.\nnetvsc_subchan_work() -\u003e rndis_set_subchannel() has not created the\nsub-channels and because of that netvsc_sc_open() is not running.\nnetvsc_remove() calls cancel_work_sync(\u0026nvdev-\u003esubchan_work), for which\nnetvsc_subchan_work did not run.\n\nnetif_napi_add() sets the bit NAPI_STATE_SCHED because it ensures NAPI\ncannot be scheduled. Then netvsc_sc_open() -\u003e napi_enable will clear the\nNAPIF_STATE_SCHED bit, so it can be scheduled. napi_disable() does the\nopposite.\n\nNow during netvsc_device_remove(), when napi_disable is called for those\nsubchannels, napi_disable gets stuck on infinite msleep.\n\nThis fix addresses this problem by ensuring that napi_disable() is not\ngetting called for non-enabled NAPI struct.\nBut netif_napi_del() is still necessary for these non-enabled NAPI struct\nfor cleanup purpose.\n\nCall trace:\n[ 654.559417] task:modprobe state:D stack: 0 pid: 2321 ppid: 1091 flags:0x00004002\n[ 654.568030] Call Trace:\n[ 654.571221] \u003cTASK\u003e\n[ 654.573790] __schedule+0x2d6/0x960\n[ 654.577733] schedule+0x69/0xf0\n[ 654.581214] schedule_timeout+0x87/0x140\n[ 654.585463] ? __bpf_trace_tick_stop+0x20/0x20\n[ 654.590291] msleep+0x2d/0x40\n[ 654.593625] napi_disable+0x2b/0x80\n[ 654.597437] netvsc_device_remove+0x8a/0x1f0 [hv_netvsc]\n[ 654.603935] rndis_filter_device_remove+0x194/0x1c0 [hv_netvsc]\n[ 654.611101] ? do_wait_intr+0xb0/0xb0\n[ 654.615753] netvsc_remove+0x7c/0x120 [hv_netvsc]\n[ 654.621675] vmbus_remove+0x27/0x40 [hv_vmbus]"
}
],
"providerMetadata": {
"dateUpdated": "2024-11-05T09:14:06.556Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/9ec807e7b6f5fcf9499f3baa69f254bb239a847f"
},
{
"url": "https://git.kernel.org/stable/c/7656372ae190e54e8c8cf1039725a5ea59fdf84a"
},
{
"url": "https://git.kernel.org/stable/c/48a8ccccffbae10c91d31fc872db5c31aba07518"
},
{
"url": "https://git.kernel.org/stable/c/22a77c0f5b8233237731df3288d067af51a2fd7b"
},
{
"url": "https://git.kernel.org/stable/c/0e8875de9dad12805ff66e92cd5edea6a421f1cd"
},
{
"url": "https://git.kernel.org/stable/c/e0526ec5360a48ad3ab2e26e802b0532302a7e11"
}
],
"title": "hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove",
"x_generator": {
"engine": "bippy-9e1c9544281a"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-26698",
"datePublished": "2024-04-03T14:54:58.577Z",
"dateReserved": "2024-02-19T14:20:24.157Z",
"dateUpdated": "2024-11-05T09:14:06.556Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2024-26698\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-03T15:15:52.933\",\"lastModified\":\"2024-11-05T10:15:42.387\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nhv_netvsc: Fix race condition between netvsc_probe and netvsc_remove\\n\\nIn commit ac5047671758 (\\\"hv_netvsc: Disable NAPI before closing the\\nVMBus channel\\\"), napi_disable was getting called for all channels,\\nincluding all subchannels without confirming if they are enabled or not.\\n\\nThis caused hv_netvsc getting hung at napi_disable, when netvsc_probe()\\nhas finished running but nvdev-\u003esubchan_work has not started yet.\\nnetvsc_subchan_work() -\u003e rndis_set_subchannel() has not created the\\nsub-channels and because of that netvsc_sc_open() is not running.\\nnetvsc_remove() calls cancel_work_sync(\u0026nvdev-\u003esubchan_work), for which\\nnetvsc_subchan_work did not run.\\n\\nnetif_napi_add() sets the bit NAPI_STATE_SCHED because it ensures NAPI\\ncannot be scheduled. Then netvsc_sc_open() -\u003e napi_enable will clear the\\nNAPIF_STATE_SCHED bit, so it can be scheduled. napi_disable() does the\\nopposite.\\n\\nNow during netvsc_device_remove(), when napi_disable is called for those\\nsubchannels, napi_disable gets stuck on infinite msleep.\\n\\nThis fix addresses this problem by ensuring that napi_disable() is not\\ngetting called for non-enabled NAPI struct.\\nBut netif_napi_del() is still necessary for these non-enabled NAPI struct\\nfor cleanup purpose.\\n\\nCall trace:\\n[ 654.559417] task:modprobe state:D stack: 0 pid: 2321 ppid: 1091 flags:0x00004002\\n[ 654.568030] Call Trace:\\n[ 654.571221] \u003cTASK\u003e\\n[ 654.573790] __schedule+0x2d6/0x960\\n[ 654.577733] schedule+0x69/0xf0\\n[ 654.581214] schedule_timeout+0x87/0x140\\n[ 654.585463] ? __bpf_trace_tick_stop+0x20/0x20\\n[ 654.590291] msleep+0x2d/0x40\\n[ 654.593625] napi_disable+0x2b/0x80\\n[ 654.597437] netvsc_device_remove+0x8a/0x1f0 [hv_netvsc]\\n[ 654.603935] rndis_filter_device_remove+0x194/0x1c0 [hv_netvsc]\\n[ 654.611101] ? do_wait_intr+0xb0/0xb0\\n[ 654.615753] netvsc_remove+0x7c/0x120 [hv_netvsc]\\n[ 654.621675] vmbus_remove+0x27/0x40 [hv_vmbus]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: hv_netvsc: corrige la condici\u00f3n de ejecuci\u00f3n entre netvsc_probe y netvsc_remove En el commit ac5047671758 (\\\"hv_netvsc: deshabilite NAPI antes de cerrar el canal VMBus\\\"), se llamaba a napi_disable para todos los canales, incluidos todos los subcanales sin confirmando si est\u00e1n habilitados o no. Esto provoc\u00f3 que hv_netvsc se colgara en napi_disable, cuando netvsc_probe() termin\u00f3 de ejecutarse pero nvdev-\u0026gt;subchan_work a\u00fan no se inici\u00f3. netvsc_subchan_work() -\u0026gt; rndis_set_subchannel() no ha creado los subcanales y por eso netvsc_sc_open() no se est\u00e1 ejecutando. netvsc_remove() llama a cancel_work_sync(\u0026amp;nvdev-\u0026gt;subchan_work), para lo cual netvsc_subchan_work no se ejecut\u00f3. netif_napi_add() establece el bit NAPI_STATE_SCHED porque garantiza que NAPI no se pueda programar. Luego netvsc_sc_open() -\u0026gt; napi_enable borrar\u00e1 el bit NAPIF_STATE_SCHED, para que pueda programarse. napi_disable() hace lo contrario. Ahora, durante netvsc_device_remove(), cuando se llama a napi_disable para esos subcanales, napi_disable se atasca en msleep infinito. Esta soluci\u00f3n soluciona este problema garantizando que no se llame a napi_disable() para una estructura NAPI no habilitada. Pero netif_napi_del() sigue siendo necesario para estas estructuras NAPI no habilitadas con fines de limpieza. Rastreo de llamadas: [654.559417] tarea:modprobe estado:D pila: 0 pid: 2321 ppid: 1091 banderas:0x00004002 [654.568030] Rastreo de llamadas: [654.571221] [654.573790] __schedule+0x2d6/0x960 [ 65 4.577733] horario+0x69 /0xf0 [654.581214] Schedule_timeout+0x87/0x140 [654.585463]? __bpf_trace_tick_stop+0x20/0x20 [ 654.590291] msleep+0x2d/0x40 [ 654.593625] napi_disable+0x2b/0x80 [ 654.597437] netvsc_device_remove+0x8a/0x1f0 [hv_netvsc] [ 6 54.603935] rndis_filter_device_remove+0x194/0x1c0 [hv_netvsc] [654.611101]? do_wait_intr+0xb0/0xb0 [ 654.615753] netvsc_remove+0x7c/0x120 [hv_netvsc] [ 654.621675] vmbus_remove+0x27/0x40 [hv_vmbus]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0e8875de9dad12805ff66e92cd5edea6a421f1cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/22a77c0f5b8233237731df3288d067af51a2fd7b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/48a8ccccffbae10c91d31fc872db5c31aba07518\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7656372ae190e54e8c8cf1039725a5ea59fdf84a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9ec807e7b6f5fcf9499f3baa69f254bb239a847f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e0526ec5360a48ad3ab2e26e802b0532302a7e11\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}