CVE-2025-39809
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: HID: intel-thc-hid: intel-quicki2c: Fix ACPI dsd ICRS/ISUB length The QuickI2C ACPI _DSD methods return ICRS and ISUB data with a trailing byte, making the actual length is one more byte than the structs defined. It caused stack-out-of-bounds and kernel crash: kernel: BUG: KASAN: stack-out-of-bounds in quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c] kernel: Write of size 12 at addr ffff888106d1f900 by task kworker/u33:2/75 kernel: kernel: CPU: 3 UID: 0 PID: 75 Comm: kworker/u33:2 Not tainted 6.16.0+ #3 PREEMPT(voluntary) kernel: Workqueue: async async_run_entry_fn kernel: Call Trace: kernel: <TASK> kernel: dump_stack_lvl+0x76/0xa0 kernel: print_report+0xd1/0x660 kernel: ? __pfx__raw_spin_lock_irqsave+0x10/0x10 kernel: ? __kasan_slab_free+0x5d/0x80 kernel: ? kasan_addr_to_slab+0xd/0xb0 kernel: kasan_report+0xe1/0x120 kernel: ? quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c] kernel: ? quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c] kernel: kasan_check_range+0x11c/0x200 kernel: __asan_memcpy+0x3b/0x80 kernel: quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c] kernel: ? __pfx_quicki2c_acpi_get_dsd_property.constprop.0+0x10/0x10 [intel_quicki2c] kernel: quicki2c_get_acpi_resources+0x237/0x730 [intel_quicki2c] [...] kernel: </TASK> kernel: kernel: The buggy address belongs to stack of task kworker/u33:2/75 kernel: and is located at offset 48 in frame: kernel: quicki2c_get_acpi_resources+0x0/0x730 [intel_quicki2c] kernel: kernel: This frame has 3 objects: kernel: [32, 36) 'hid_desc_addr' kernel: [48, 59) 'i2c_param' kernel: [80, 224) 'i2c_config' ACPI DSD methods return: \_SB.PC00.THC0.ICRS Buffer 000000003fdc947b 001 Len 0C = 0A 00 80 1A 06 00 00 00 00 00 00 00 \_SB.PC00.THC0.ISUB Buffer 00000000f2fcbdc4 001 Len 91 = 00 00 00 00 00 00 00 00 00 00 00 00 Adding reserved padding to quicki2c_subip_acpi_parameter/config.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-16 13:15:52.987000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-39809",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-16T13:15:52.987",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: intel-thc-hid: intel-quicki2c: Fix ACPI dsd ICRS/ISUB length\n\nThe QuickI2C ACPI _DSD methods return ICRS and ISUB data with a\ntrailing byte, making the actual length is one more byte than the\nstructs defined.\n\nIt caused stack-out-of-bounds and kernel crash:\n\nkernel: BUG: KASAN: stack-out-of-bounds in quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: Write of size 12 at addr ffff888106d1f900 by task kworker/u33:2/75\nkernel:\nkernel: CPU: 3 UID: 0 PID: 75 Comm: kworker/u33:2 Not tainted 6.16.0+ #3 PREEMPT(voluntary)\nkernel: Workqueue: async async_run_entry_fn\nkernel: Call Trace:\nkernel: <TASK>\nkernel: dump_stack_lvl+0x76/0xa0\nkernel: print_report+0xd1/0x660\nkernel: ? __pfx__raw_spin_lock_irqsave+0x10/0x10\nkernel: ? __kasan_slab_free+0x5d/0x80\nkernel: ? kasan_addr_to_slab+0xd/0xb0\nkernel: kasan_report+0xe1/0x120\nkernel: ? quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: ? quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: kasan_check_range+0x11c/0x200\nkernel: __asan_memcpy+0x3b/0x80\nkernel: quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: ? __pfx_quicki2c_acpi_get_dsd_property.constprop.0+0x10/0x10 [intel_quicki2c]\nkernel: quicki2c_get_acpi_resources+0x237/0x730 [intel_quicki2c]\n[...]\nkernel: </TASK>\nkernel:\nkernel: The buggy address belongs to stack of task kworker/u33:2/75\nkernel: and is located at offset 48 in frame:\nkernel: quicki2c_get_acpi_resources+0x0/0x730 [intel_quicki2c]\nkernel:\nkernel: This frame has 3 objects:\nkernel: [32, 36) 'hid_desc_addr'\nkernel: [48, 59) 'i2c_param'\nkernel: [80, 224) 'i2c_config'\n\nACPI DSD methods return:\n\n\\_SB.PC00.THC0.ICRS Buffer 000000003fdc947b 001 Len 0C = 0A 00 80 1A 06 00 00 00 00 00 00 00\n\\_SB.PC00.THC0.ISUB Buffer 00000000f2fcbdc4 001 Len 91 = 00 00 00 00 00 00 00 00 00 00 00 00\n\nAdding reserved padding to quicki2c_subip_acpi_parameter/config."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nHID: intel-thc-hid: intel-quicki2c: Corrección de la longitud de ACPI dsd ICRS/ISUB\n\nLos métodos _DSD de ACPI de QuickI2C devuelven datos ICRS e ISUB con un byte adicional, haciendo que la longitud real sea un byte más que las estructuras definidas.\n\nEsto causó desbordamiento de pila y un fallo del kernel:\n\nkernel: ERROR: KASAN: desbordamiento de pila en quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: Escritura de tamaño 12 en la dirección ffff888106d1f900 por la tarea kworker/u33:2/75\nkernel:\nkernel: CPU: 3 UID: 0 PID: 75 Comm: kworker/u33:2 Not tainted 6.16.0+ #3 PREEMPT(voluntary)\nkernel: Cola de trabajo: async async_run_entry_fn\nkernel: Traza de llamada:\nkernel: <TASK>\nkernel: dump_stack_lvl+0x76/0xa0\nkernel: print_report+0xd1/0x660\nkernel: ? __pfx__raw_spin_lock_irqsave+0x10/0x10\nkernel: ? __kasan_slab_free+0x5d/0x80\nkernel: ? kasan_addr_to_slab+0xd/0xb0\nkernel: kasan_report+0xe1/0x120\nkernel: ? quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: ? quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: kasan_check_range+0x11c/0x200\nkernel: __asan_memcpy+0x3b/0x80\nkernel: quicki2c_acpi_get_dsd_property.constprop.0+0x111/0x1b0 [intel_quicki2c]\nkernel: ? __pfx_quicki2c_acpi_get_dsd_property.constprop.0+0x10/0x10 [intel_quicki2c]\nkernel: quicki2c_get_acpi_resources+0x237/0x730 [intel_quicki2c]\nkernel: [...]\nkernel: </TASK>\nkernel:\nkernel: La dirección errónea pertenece a la pila de la tarea kworker/u33:2/75\nkernel: y está ubicada en el desplazamiento 48 en el marco:\nkernel: quicki2c_get_acpi_resources+0x0/0x730 [intel_quicki2c]\nkernel:\nkernel: Este marco tiene 3 objetos:\nkernel: [32, 36) 'hid_desc_addr'\nkernel: [48, 59) 'i2c_param'\nkernel: [80, 224) 'i2c_config'\n\nLos métodos DSD de ACPI devuelven:\n\n\\_SB.PC00.THC0.ICRS Buffer 000000003fdc947b 001 Len 0C = 0A 00 80 1A 06 00 00 00 00 00 00 00\n\\_SB.PC00.THC0.ISUB Buffer 00000000f2fcbdc4 001 Len 91 = 00 00 00 00 00 00 00 00 00 00 00 00\n\nAñadiendo relleno reservado a quicki2c_subip_acpi_parameter/config."
}
],
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"affectedData": [
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"defaultStatus": "unaffected",
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],
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"id": "CVE-2025-39809",
"options": [
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"configurations": [
{
"nodes": [
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