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vuln-cve/data/2024/44xxx/CVE-2024-44937.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2024-44937",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-08-21T05:34:56.664Z",
"datePublished": "2024-08-26T10:11:30.234Z",
"dateUpdated": "2026-05-11T20:32:21.545Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T20:32:21.545Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: intel-vbtn: Protect ACPI notify handler against recursion\n\nSince commit e2ffcda16290 (\"ACPI: OSL: Allow Notify () handlers to run on\nall CPUs\") ACPI notify handlers like the intel-vbtn notify_handler() may\nrun on multiple CPU cores racing with themselves.\n\nThis race gets hit on Dell Venue 7140 tablets when undocking from\nthe keyboard, causing the handler to try and register priv->switches_dev\ntwice, as can be seen from the dev_info() message getting logged twice:\n\n[ 83.861800] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event\n[ 83.861858] input: Intel Virtual Switches as /devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17\n[ 83.861865] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event\n\nAfter which things go seriously wrong:\n[ 83.861872] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17'\n...\n[ 83.861967] kobject: kobject_add_internal failed for input17 with -EEXIST, don't try to register things with the same name in the same directory.\n[ 83.877338] BUG: kernel NULL pointer dereference, address: 0000000000000018\n...\n\nProtect intel-vbtn notify_handler() from racing with itself with a mutex\nto fix this."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/platform/x86/intel/vbtn.c"
],
"versions": [
{
"version": "e2ffcda1629012a2c1a3706432bc45fdc899a584",
"lessThan": "5c9618a3b6ea94cf7bdff7702aca8bf2d777d97b",
"status": "affected",
"versionType": "git"
},
{
"version": "e2ffcda1629012a2c1a3706432bc45fdc899a584",
"lessThan": "e075c3b13a0a142dcd3151b25d29a24f31b7b640",
"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/platform/x86/intel/vbtn.c"
],
"versions": [
{
"version": "6.8",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.8",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.10.5",
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.11",
"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": "6.8",
"versionEndExcluding": "6.10.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.8",
"versionEndExcluding": "6.11"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/5c9618a3b6ea94cf7bdff7702aca8bf2d777d97b"
},
{
"url": "https://git.kernel.org/stable/c/e075c3b13a0a142dcd3151b25d29a24f31b7b640"
}
],
"title": "platform/x86: intel-vbtn: Protect ACPI notify handler against recursion",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2024-44937",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-09-10T15:27:41.784213Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2024-09-12T17:33:06.802Z"
}
}
]
}
}