CVE-2025-38344 (GCVE-0-2025-38344)
Vulnerability from cvelistv5 – Published: 2025-07-10 08:15 – Updated: 2026-05-11 21:26
VLAI
EPSS
VEX
Title
ACPICA: fix acpi parse and parseext cache leaks
Summary
In the Linux kernel, the following vulnerability has been resolved:
ACPICA: fix acpi parse and parseext cache leaks
ACPICA commit 8829e70e1360c81e7a5a901b5d4f48330e021ea5
I'm Seunghun Han, and I work for National Security Research Institute of
South Korea.
I have been doing a research on ACPI and found an ACPI cache leak in ACPI
early abort cases.
Boot log of ACPI cache leak is as follows:
[ 0.352414] ACPI: Added _OSI(Module Device)
[ 0.353182] ACPI: Added _OSI(Processor Device)
[ 0.353182] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.353182] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.356028] ACPI: Unable to start the ACPI Interpreter
[ 0.356799] ACPI Error: Could not remove SCI handler (20170303/evmisc-281)
[ 0.360215] kmem_cache_destroy Acpi-State: Slab cache still has objects
[ 0.360648] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W
4.12.0-rc4-next-20170608+ #10
[ 0.361273] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS
virtual_box 12/01/2006
[ 0.361873] Call Trace:
[ 0.362243] ? dump_stack+0x5c/0x81
[ 0.362591] ? kmem_cache_destroy+0x1aa/0x1c0
[ 0.362944] ? acpi_sleep_proc_init+0x27/0x27
[ 0.363296] ? acpi_os_delete_cache+0xa/0x10
[ 0.363646] ? acpi_ut_delete_caches+0x6d/0x7b
[ 0.364000] ? acpi_terminate+0xa/0x14
[ 0.364000] ? acpi_init+0x2af/0x34f
[ 0.364000] ? __class_create+0x4c/0x80
[ 0.364000] ? video_setup+0x7f/0x7f
[ 0.364000] ? acpi_sleep_proc_init+0x27/0x27
[ 0.364000] ? do_one_initcall+0x4e/0x1a0
[ 0.364000] ? kernel_init_freeable+0x189/0x20a
[ 0.364000] ? rest_init+0xc0/0xc0
[ 0.364000] ? kernel_init+0xa/0x100
[ 0.364000] ? ret_from_fork+0x25/0x30
I analyzed this memory leak in detail. I found that “Acpi-State” cache and
“Acpi-Parse” cache were merged because the size of cache objects was same
slab cache size.
I finally found “Acpi-Parse” cache and “Acpi-parse_ext” cache were leaked
using SLAB_NEVER_MERGE flag in kmem_cache_create() function.
Real ACPI cache leak point is as follows:
[ 0.360101] ACPI: Added _OSI(Module Device)
[ 0.360101] ACPI: Added _OSI(Processor Device)
[ 0.360101] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.361043] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.364016] ACPI: Unable to start the ACPI Interpreter
[ 0.365061] ACPI Error: Could not remove SCI handler (20170303/evmisc-281)
[ 0.368174] kmem_cache_destroy Acpi-Parse: Slab cache still has objects
[ 0.369332] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W
4.12.0-rc4-next-20170608+ #8
[ 0.371256] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS
virtual_box 12/01/2006
[ 0.372000] Call Trace:
[ 0.372000] ? dump_stack+0x5c/0x81
[ 0.372000] ? kmem_cache_destroy+0x1aa/0x1c0
[ 0.372000] ? acpi_sleep_proc_init+0x27/0x27
[ 0.372000] ? acpi_os_delete_cache+0xa/0x10
[ 0.372000] ? acpi_ut_delete_caches+0x56/0x7b
[ 0.372000] ? acpi_terminate+0xa/0x14
[ 0.372000] ? acpi_init+0x2af/0x34f
[ 0.372000] ? __class_create+0x4c/0x80
[ 0.372000] ? video_setup+0x7f/0x7f
[ 0.372000] ? acpi_sleep_proc_init+0x27/0x27
[ 0.372000] ? do_one_initcall+0x4e/0x1a0
[ 0.372000] ? kernel_init_freeable+0x189/0x20a
[ 0.372000] ? rest_init+0xc0/0xc0
[ 0.372000] ? kernel_init+0xa/0x100
[ 0.372000] ? ret_from_fork+0x25/0x30
[ 0.388039] kmem_cache_destroy Acpi-parse_ext: Slab cache still has objects
[ 0.389063] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W
4.12.0-rc4-next-20170608+ #8
[ 0.390557] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS
virtual_box 12/01/2006
[ 0.392000] Call Trace:
[ 0.392000] ? dump_stack+0x5c/0x81
[ 0.392000] ? kmem_cache_destroy+0x1aa/0x1c0
[ 0.392000] ? acpi_sleep_proc_init+0x27/0x27
[ 0.392000] ? acpi_os_delete_cache+0xa/0x10
[ 0.392000] ? acpi_ut_delete_caches+0x6d/0x7b
[ 0.392000] ? acpi_terminate+0xa/0x14
[ 0.392000] ? acpi_init+0x2af/0x3
---truncated---
Severity
5.5 (Medium)
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
88ac00f5a841dcfc5c682000f4a6add0add8caac , < 1e0e629e88b1f7751ce69bf70cda6d1598d45271
(git)
Affected: 88ac00f5a841dcfc5c682000f4a6add0add8caac , < 41afebc9a0762aafc35d2df88f4e1b798155a940 (git) Affected: 88ac00f5a841dcfc5c682000f4a6add0add8caac , < 960236150cd3f08e13b397dd5ae4ccf7a2986c00 (git) Affected: 88ac00f5a841dcfc5c682000f4a6add0add8caac , < 0a119fdaed67566aa3e0b5222dced4d08bbce463 (git) Affected: 88ac00f5a841dcfc5c682000f4a6add0add8caac , < 1fee4324b5660de080cefc3fc91c371543bdb8f6 (git) Affected: 88ac00f5a841dcfc5c682000f4a6add0add8caac , < 198c2dab022e5e94a99fff267b669d693bc7bb49 (git) Affected: 88ac00f5a841dcfc5c682000f4a6add0add8caac , < 3e0c59180ec83bdec43b3d3482cff23d86d380d0 (git) Affected: 88ac00f5a841dcfc5c682000f4a6add0add8caac , < bed18f0bdcd6737a938264a59d67923688696fc4 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.14
Unaffected: 0 , < 2.6.14 (semver) Unaffected: 5.4.295 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.95 , ≤ 6.6.* (semver) Unaffected: 6.12.35 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
guessed |
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"cpeApplicability": [
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: fix acpi parse and parseext cache leaks\n\nACPICA commit 8829e70e1360c81e7a5a901b5d4f48330e021ea5\n\nI\u0027m Seunghun Han, and I work for National Security Research Institute of\nSouth Korea.\n\nI have been doing a research on ACPI and found an ACPI cache leak in ACPI\nearly abort cases.\n\nBoot log of ACPI cache leak is as follows:\n[ 0.352414] ACPI: Added _OSI(Module Device)\n[ 0.353182] ACPI: Added _OSI(Processor Device)\n[ 0.353182] ACPI: Added _OSI(3.0 _SCP Extensions)\n[ 0.353182] ACPI: Added _OSI(Processor Aggregator Device)\n[ 0.356028] ACPI: Unable to start the ACPI Interpreter\n[ 0.356799] ACPI Error: Could not remove SCI handler (20170303/evmisc-281)\n[ 0.360215] kmem_cache_destroy Acpi-State: Slab cache still has objects\n[ 0.360648] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W\n4.12.0-rc4-next-20170608+ #10\n[ 0.361273] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS\nvirtual_box 12/01/2006\n[ 0.361873] Call Trace:\n[ 0.362243] ? dump_stack+0x5c/0x81\n[ 0.362591] ? kmem_cache_destroy+0x1aa/0x1c0\n[ 0.362944] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.363296] ? acpi_os_delete_cache+0xa/0x10\n[ 0.363646] ? acpi_ut_delete_caches+0x6d/0x7b\n[ 0.364000] ? acpi_terminate+0xa/0x14\n[ 0.364000] ? acpi_init+0x2af/0x34f\n[ 0.364000] ? __class_create+0x4c/0x80\n[ 0.364000] ? video_setup+0x7f/0x7f\n[ 0.364000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.364000] ? do_one_initcall+0x4e/0x1a0\n[ 0.364000] ? kernel_init_freeable+0x189/0x20a\n[ 0.364000] ? rest_init+0xc0/0xc0\n[ 0.364000] ? kernel_init+0xa/0x100\n[ 0.364000] ? ret_from_fork+0x25/0x30\n\nI analyzed this memory leak in detail. I found that \u201cAcpi-State\u201d cache and\n\u201cAcpi-Parse\u201d cache were merged because the size of cache objects was same\nslab cache size.\n\nI finally found \u201cAcpi-Parse\u201d cache and \u201cAcpi-parse_ext\u201d cache were leaked\nusing SLAB_NEVER_MERGE flag in kmem_cache_create() function.\n\nReal ACPI cache leak point is as follows:\n[ 0.360101] ACPI: Added _OSI(Module Device)\n[ 0.360101] ACPI: Added _OSI(Processor Device)\n[ 0.360101] ACPI: Added _OSI(3.0 _SCP Extensions)\n[ 0.361043] ACPI: Added _OSI(Processor Aggregator Device)\n[ 0.364016] ACPI: Unable to start the ACPI Interpreter\n[ 0.365061] ACPI Error: Could not remove SCI handler (20170303/evmisc-281)\n[ 0.368174] kmem_cache_destroy Acpi-Parse: Slab cache still has objects\n[ 0.369332] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W\n4.12.0-rc4-next-20170608+ #8\n[ 0.371256] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS\nvirtual_box 12/01/2006\n[ 0.372000] Call Trace:\n[ 0.372000] ? dump_stack+0x5c/0x81\n[ 0.372000] ? kmem_cache_destroy+0x1aa/0x1c0\n[ 0.372000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.372000] ? acpi_os_delete_cache+0xa/0x10\n[ 0.372000] ? acpi_ut_delete_caches+0x56/0x7b\n[ 0.372000] ? acpi_terminate+0xa/0x14\n[ 0.372000] ? acpi_init+0x2af/0x34f\n[ 0.372000] ? __class_create+0x4c/0x80\n[ 0.372000] ? video_setup+0x7f/0x7f\n[ 0.372000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.372000] ? do_one_initcall+0x4e/0x1a0\n[ 0.372000] ? kernel_init_freeable+0x189/0x20a\n[ 0.372000] ? rest_init+0xc0/0xc0\n[ 0.372000] ? kernel_init+0xa/0x100\n[ 0.372000] ? ret_from_fork+0x25/0x30\n[ 0.388039] kmem_cache_destroy Acpi-parse_ext: Slab cache still has objects\n[ 0.389063] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W\n4.12.0-rc4-next-20170608+ #8\n[ 0.390557] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS\nvirtual_box 12/01/2006\n[ 0.392000] Call Trace:\n[ 0.392000] ? dump_stack+0x5c/0x81\n[ 0.392000] ? kmem_cache_destroy+0x1aa/0x1c0\n[ 0.392000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.392000] ? acpi_os_delete_cache+0xa/0x10\n[ 0.392000] ? acpi_ut_delete_caches+0x6d/0x7b\n[ 0.392000] ? acpi_terminate+0xa/0x14\n[ 0.392000] ? acpi_init+0x2af/0x3\n---truncated---"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:26:10.671Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1e0e629e88b1f7751ce69bf70cda6d1598d45271"
},
{
"url": "https://git.kernel.org/stable/c/41afebc9a0762aafc35d2df88f4e1b798155a940"
},
{
"url": "https://git.kernel.org/stable/c/960236150cd3f08e13b397dd5ae4ccf7a2986c00"
},
{
"url": "https://git.kernel.org/stable/c/0a119fdaed67566aa3e0b5222dced4d08bbce463"
},
{
"url": "https://git.kernel.org/stable/c/1fee4324b5660de080cefc3fc91c371543bdb8f6"
},
{
"url": "https://git.kernel.org/stable/c/198c2dab022e5e94a99fff267b669d693bc7bb49"
},
{
"url": "https://git.kernel.org/stable/c/3e0c59180ec83bdec43b3d3482cff23d86d380d0"
},
{
"url": "https://git.kernel.org/stable/c/bed18f0bdcd6737a938264a59d67923688696fc4"
}
],
"title": "ACPICA: fix acpi parse and parseext cache leaks",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38344",
"datePublished": "2025-07-10T08:15:12.791Z",
"dateReserved": "2025-04-16T04:51:24.006Z",
"dateUpdated": "2026-05-11T21:26:10.671Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-38344",
"date": "2026-10-24",
"epss": "0.00196",
"percentile": "0.08758"
},
"microsoft_vex": {
"current_release_date": "2026-02-18T15:06:09.000Z",
"cve": "CVE-2025-38344",
"id": "msrc_CVE-2025-38344",
"initial_release_date": "2025-07-02T00:00:00.000Z",
"product_status:fixed": "1",
"product_status:known_affected": "1",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "ACPICA: fix acpi parse and parseext cache leaks",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-38344.json",
"version": "2"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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},
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},
{
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},
{
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},
{
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},
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: fix acpi parse and parseext cache leaks\n\nACPICA commit 8829e70e1360c81e7a5a901b5d4f48330e021ea5\n\nI\u0027m Seunghun Han, and I work for National Security Research Institute of\nSouth Korea.\n\nI have been doing a research on ACPI and found an ACPI cache leak in ACPI\nearly abort cases.\n\nBoot log of ACPI cache leak is as follows:\n[ 0.352414] ACPI: Added _OSI(Module Device)\n[ 0.353182] ACPI: Added _OSI(Processor Device)\n[ 0.353182] ACPI: Added _OSI(3.0 _SCP Extensions)\n[ 0.353182] ACPI: Added _OSI(Processor Aggregator Device)\n[ 0.356028] ACPI: Unable to start the ACPI Interpreter\n[ 0.356799] ACPI Error: Could not remove SCI handler (20170303/evmisc-281)\n[ 0.360215] kmem_cache_destroy Acpi-State: Slab cache still has objects\n[ 0.360648] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W\n4.12.0-rc4-next-20170608+ #10\n[ 0.361273] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS\nvirtual_box 12/01/2006\n[ 0.361873] Call Trace:\n[ 0.362243] ? dump_stack+0x5c/0x81\n[ 0.362591] ? kmem_cache_destroy+0x1aa/0x1c0\n[ 0.362944] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.363296] ? acpi_os_delete_cache+0xa/0x10\n[ 0.363646] ? acpi_ut_delete_caches+0x6d/0x7b\n[ 0.364000] ? acpi_terminate+0xa/0x14\n[ 0.364000] ? acpi_init+0x2af/0x34f\n[ 0.364000] ? __class_create+0x4c/0x80\n[ 0.364000] ? video_setup+0x7f/0x7f\n[ 0.364000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.364000] ? do_one_initcall+0x4e/0x1a0\n[ 0.364000] ? kernel_init_freeable+0x189/0x20a\n[ 0.364000] ? rest_init+0xc0/0xc0\n[ 0.364000] ? kernel_init+0xa/0x100\n[ 0.364000] ? ret_from_fork+0x25/0x30\n\nI analyzed this memory leak in detail. I found that \u201cAcpi-State\u201d cache and\n\u201cAcpi-Parse\u201d cache were merged because the size of cache objects was same\nslab cache size.\n\nI finally found \u201cAcpi-Parse\u201d cache and \u201cAcpi-parse_ext\u201d cache were leaked\nusing SLAB_NEVER_MERGE flag in kmem_cache_create() function.\n\nReal ACPI cache leak point is as follows:\n[ 0.360101] ACPI: Added _OSI(Module Device)\n[ 0.360101] ACPI: Added _OSI(Processor Device)\n[ 0.360101] ACPI: Added _OSI(3.0 _SCP Extensions)\n[ 0.361043] ACPI: Added _OSI(Processor Aggregator Device)\n[ 0.364016] ACPI: Unable to start the ACPI Interpreter\n[ 0.365061] ACPI Error: Could not remove SCI handler (20170303/evmisc-281)\n[ 0.368174] kmem_cache_destroy Acpi-Parse: Slab cache still has objects\n[ 0.369332] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W\n4.12.0-rc4-next-20170608+ #8\n[ 0.371256] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS\nvirtual_box 12/01/2006\n[ 0.372000] Call Trace:\n[ 0.372000] ? dump_stack+0x5c/0x81\n[ 0.372000] ? kmem_cache_destroy+0x1aa/0x1c0\n[ 0.372000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.372000] ? acpi_os_delete_cache+0xa/0x10\n[ 0.372000] ? acpi_ut_delete_caches+0x56/0x7b\n[ 0.372000] ? acpi_terminate+0xa/0x14\n[ 0.372000] ? acpi_init+0x2af/0x34f\n[ 0.372000] ? __class_create+0x4c/0x80\n[ 0.372000] ? video_setup+0x7f/0x7f\n[ 0.372000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.372000] ? do_one_initcall+0x4e/0x1a0\n[ 0.372000] ? kernel_init_freeable+0x189/0x20a\n[ 0.372000] ? rest_init+0xc0/0xc0\n[ 0.372000] ? kernel_init+0xa/0x100\n[ 0.372000] ? ret_from_fork+0x25/0x30\n[ 0.388039] kmem_cache_destroy Acpi-parse_ext: Slab cache still has objects\n[ 0.389063] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W\n4.12.0-rc4-next-20170608+ #8\n[ 0.390557] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS\nvirtual_box 12/01/2006\n[ 0.392000] Call Trace:\n[ 0.392000] ? dump_stack+0x5c/0x81\n[ 0.392000] ? kmem_cache_destroy+0x1aa/0x1c0\n[ 0.392000] ? acpi_sleep_proc_init+0x27/0x27\n[ 0.392000] ? acpi_os_delete_cache+0xa/0x10\n[ 0.392000] ? acpi_ut_delete_caches+0x6d/0x7b\n[ 0.392000] ? acpi_terminate+0xa/0x14\n[ 0.392000] ? acpi_init+0x2af/0x3\n---truncated---"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ACPICA: se corrigen las fugas de cach\u00e9 de ACPI parse y parseext. Confirmaci\u00f3n de ACPICA 8829e70e1360c81e7a5a901b5d4f48330e021ea5. Soy Seunghun Han y trabajo para el Instituto de Investigaci\u00f3n de Seguridad Nacional de Corea del Sur. He estado investigando sobre ACPI y he encontrado una fuga de cach\u00e9 en casos de aborto temprano de ACPI. El registro de arranque de la p\u00e9rdida de cach\u00e9 ACPI es el siguiente: [0.352414] ACPI: _OSI(Dispositivo de m\u00f3dulo) a\u00f1adido [0.353182] ACPI: _OSI(Dispositivo de procesador) a\u00f1adido [0.353182] ACPI: _OSI(Extensiones 3.0 _SCP) a\u00f1adido [0.353182] ACPI: _OSI(Dispositivo agregador de procesador) a\u00f1adido [0.356028] ACPI: No se puede iniciar el int\u00e9rprete ACPI [0.356799] Error ACPI: No se pudo eliminar el controlador SCI (20170303/evmisc-281) [0.360215] kmem_cache_destroy Estado Acpi: La cach\u00e9 Slab todav\u00eda tiene objetos [0.360648] CPU: 0 PID: 1 Comm: swapper/0 Contaminado: GW 4.12.0-rc4-next-20170608+ #10 [ 0.361273] Nombre del hardware: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 [ 0.361873] Rastreo de llamadas: [ 0.362243] ? dump_stack+0x5c/0x81 [ 0.362591] ? kmem_cache_destroy+0x1aa/0x1c0 [ 0.362944] ? acpi_sleep_proc_init+0x27/0x27 [ 0.363296] ? acpi_os_delete_cache+0xa/0x10 [ 0.363646] ? acpi_ut_delete_caches+0x6d/0x7b [ 0.364000] ? acpi_terminate+0xa/0x14 [ 0.364000] ? acpi_init+0x2af/0x34f [ 0.364000] ? __class_create+0x4c/0x80 [ 0.364000] ? video_setup+0x7f/0x7f [ 0.364000] ? acpi_sleep_proc_init+0x27/0x27 [ 0.364000] ? do_one_initcall+0x4e/0x1a0 [ 0.364000] ? kernel_init_freeable+0x189/0x20a [ 0.364000] ? rest_init+0xc0/0xc0 [ 0.364000] ? kernel_init+0xa/0x100 [ 0.364000] ? ret_from_fork+0x25/0x30 Analic\u00e9 esta fuga de memoria en detalle. Descubr\u00ed que las cach\u00e9s \"Acpi-State\" y \"Acpi-Parse\" se fusionaron porque el tama\u00f1o de los objetos de la cach\u00e9 era el mismo que el de la cach\u00e9 slab. Finalmente, descubr\u00ed que las cach\u00e9s \"Acpi-Parse\" y \"Acpi-parse_ext\" se filtraron mediante el indicador SLAB_NEVER_MERGE de la funci\u00f3n kmem_cache_create(). El punto de fuga de cach\u00e9 ACPI real es el siguiente: [0.360101] ACPI: _OSI(Dispositivo de m\u00f3dulo) a\u00f1adido [0.360101] ACPI: _OSI(Dispositivo de procesador) a\u00f1adido [0.360101] ACPI: _OSI(Extensiones 3.0 _SCP) a\u00f1adido [0.361043] ACPI: _OSI(Dispositivo agregador de procesador) a\u00f1adido [0.364016] ACPI: No se puede iniciar el int\u00e9rprete ACPI [0.365061] Error ACPI: No se pudo eliminar el controlador SCI (20170303/evmisc-281) [0.368174] kmem_cache_destroy Acpi-Parse: La cach\u00e9 Slab a\u00fan tiene objetos [0.369332] CPU: 1 PID: 1 Comm: swapper/0 Contaminado: GW 4.12.0-rc4-next-20170608+ #8 [ 0.371256] Nombre del hardware: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 [ 0.372000] Rastreo de llamadas: [ 0.372000] ? dump_stack+0x5c/0x81 [ 0.372000] ? kmem_cache_destroy+0x1aa/0x1c0 [ 0.372000] ? acpi_sleep_proc_init+0x27/0x27 [ 0.372000] ? acpi_os_delete_cache+0xa/0x10 [ 0.372000] ? acpi_ut_delete_caches+0x56/0x7b [0.372000] ? acpi_terminate+0xa/0x14 [0.372000] ? acpi_init+0x2af/0x34f [0.372000] ? __class_create+0x4c/0x80 [0.372000] ? video_setup+0x7f/0x7f [0.372000] ? acpi_sleep_proc_init+0x27/0x27 [0.372000] ? do_one_initcall+0x4e/0x1a0 [0.372000] ? kernel_init_freeable+0x189/0x20a [0.372000] ? rest_init+0xc0/0xc0 [ 0.372000] ? kernel_init+0xa/0x100 [ 0.372000] ? ret_from_fork+0x25/0x30 [ 0.388039] kmem_cache_destroy Acpi-parse_ext: La cach\u00e9 Slab a\u00fan tiene objetos [ 0.389063] CPU: 1 PID: 1 Comm: swapper/0 Contaminado: GW 4.12.0-rc4-next-20170608+ #8 [ 0.390557] Nombre del hardware: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 [ 0.392000] Rastreo de llamadas: [ 0.392000] ? dump_stack+0x5c/0x81 [ 0.392000] ? kmem_cache_destroy+0x1aa/0x1c0 [ 0.392000] ? acpi_sleep_proc_init+0x27/0x27 [ 0.392000] ? acpi_os_delete_cache+0xa/0x10 [ 0.392000] ? acpi_ut_delete_caches+0x6d/0x7b [ 0.392000] ? acpi_terminate+0xa/0x14 [ 0.392000] ? acpi_init+0x2af/0x3 ---truncado---"
}
],
"id": "CVE-2025-38344",
"lastModified": "2026-06-17T09:16:39.913",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-07-10T09:15:29.283",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"Patch"
],
"url": "https://git.kernel.org/stable/c/0a119fdaed67566aa3e0b5222dced4d08bbce463"
},
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},
{
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-30T01:04:29+00:00",
"cve": "CVE-2025-38344",
"id": "CVE-2025-38344",
"initial_release_date": "2025-07-10T00:00:00+00:00",
"product_status:known_affected": "260",
"product_status:known_not_affected": "14",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ACPICA: fix acpi parse and parseext cache leaks",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38344.json",
"version": "3"
}
}
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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They have not been verified by an analyst and are provided for guidance only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.