FKIE_CVE-2024-26894
Vulnerability from fkie_nvd - Published: 2024-04-17 11:15 - Updated: 2026-06-17 07:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()
After unregistering the CPU idle device, the memory associated with
it is not freed, leading to a memory leak:
unreferenced object 0xffff896282f6c000 (size 1024):
comm "swapper/0", pid 1, jiffies 4294893170
hex dump (first 32 bytes):
00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc 8836a742):
[<ffffffff993495ed>] kmalloc_trace+0x29d/0x340
[<ffffffff9972f3b3>] acpi_processor_power_init+0xf3/0x1c0
[<ffffffff9972d263>] __acpi_processor_start+0xd3/0xf0
[<ffffffff9972d2bc>] acpi_processor_start+0x2c/0x50
[<ffffffff99805872>] really_probe+0xe2/0x480
[<ffffffff99805c98>] __driver_probe_device+0x78/0x160
[<ffffffff99805daf>] driver_probe_device+0x1f/0x90
[<ffffffff9980601e>] __driver_attach+0xce/0x1c0
[<ffffffff99803170>] bus_for_each_dev+0x70/0xc0
[<ffffffff99804822>] bus_add_driver+0x112/0x210
[<ffffffff99807245>] driver_register+0x55/0x100
[<ffffffff9aee4acb>] acpi_processor_driver_init+0x3b/0xc0
[<ffffffff990012d1>] do_one_initcall+0x41/0x300
[<ffffffff9ae7c4b0>] kernel_init_freeable+0x320/0x470
[<ffffffff99b231f6>] kernel_init+0x16/0x1b0
[<ffffffff99042e6d>] ret_from_fork+0x2d/0x50
Fix this by freeing the CPU idle device after unregistering it.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| debian | debian_linux | 10.0 |
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],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()\n\nAfter unregistering the CPU idle device, the memory associated with\nit is not freed, leading to a memory leak:\n\nunreferenced object 0xffff896282f6c000 (size 1024):\n comm \"swapper/0\", pid 1, jiffies 4294893170\n hex dump (first 32 bytes):\n 00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc 8836a742):\n [\u003cffffffff993495ed\u003e] kmalloc_trace+0x29d/0x340\n [\u003cffffffff9972f3b3\u003e] acpi_processor_power_init+0xf3/0x1c0\n [\u003cffffffff9972d263\u003e] __acpi_processor_start+0xd3/0xf0\n [\u003cffffffff9972d2bc\u003e] acpi_processor_start+0x2c/0x50\n [\u003cffffffff99805872\u003e] really_probe+0xe2/0x480\n [\u003cffffffff99805c98\u003e] __driver_probe_device+0x78/0x160\n [\u003cffffffff99805daf\u003e] driver_probe_device+0x1f/0x90\n [\u003cffffffff9980601e\u003e] __driver_attach+0xce/0x1c0\n [\u003cffffffff99803170\u003e] bus_for_each_dev+0x70/0xc0\n [\u003cffffffff99804822\u003e] bus_add_driver+0x112/0x210\n [\u003cffffffff99807245\u003e] driver_register+0x55/0x100\n [\u003cffffffff9aee4acb\u003e] acpi_processor_driver_init+0x3b/0xc0\n [\u003cffffffff990012d1\u003e] do_one_initcall+0x41/0x300\n [\u003cffffffff9ae7c4b0\u003e] kernel_init_freeable+0x320/0x470\n [\u003cffffffff99b231f6\u003e] kernel_init+0x16/0x1b0\n [\u003cffffffff99042e6d\u003e] ret_from_fork+0x2d/0x50\n\nFix this by freeing the CPU idle device after unregistering it."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ACPI: procesador_idle: corrige la p\u00e9rdida de memoria en acpi_processor_power_exit() Despu\u00e9s de cancelar el registro del dispositivo de CPU inactivo, la memoria asociada con \u00e9l no se libera, lo que genera una p\u00e9rdida de memoria: objeto sin referencia 0xffff896282f6c000 (tama\u00f1o 1024): comunicaci\u00f3n \"swapper/0\", pid 1, santiam\u00e9n 4294893170 volcado hexadecimal (primeros 32 bytes): 00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 ........... ..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ retroceso (crc 8836a742): [] kmalloc_trace+ 0x29d/0x340 [] acpi_processor_power_init+0xf3/0x1c0 [] __acpi_processor_start+0xd3/0xf0 [] acpi_processor_start+0x2c/0x50 [] realmente_probe+0xe2/0x480 [] __driver_probe_device+ 0x78/0x160 [] driver_probe_device+0x1f/0x90 [] __driver_attach+0xce/0x1c0 [] bus_for_each_dev+0x70/0xc0 [] bus_add_driver+0x112/0x210 [] driver_register+ 0x55/0x100 [] acpi_processor_driver_init+0x3b/0xc0 [] do_one_initcall+0x41/0x300 [] kernel_init_freeable+0x320/0x470 [] kernel_init+0x16/0x1b0 [] ret_from_fork+ 0x2d/0x50 Solucione este problema liberando el dispositivo de CPU inactivo despu\u00e9s de cancelar su registro."
}
],
"id": "CVE-2024-26894",
"lastModified": "2026-06-17T07:18:37.590",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 0.8,
"impactScore": 5.2,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
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"ssvcData": {
"id": "CVE-2024-26894",
"options": [
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"exploitation": "none"
},
{
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},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-06T16:56:24.973748Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-04-17T11:15:10.630",
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{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
}
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"weaknesses": [
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"value": "CWE-770"
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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