CVE-2025-38179
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix max_sge overflow in smb_extract_folioq_to_rdma()
This fixes the following problem:
Detalles técnicos trazas, registros y código del informe original
[ 749.901015] [ T8673] run fstests cifs/001 at 2025-06-17 09:40:30 [ 750.346409] [ T9870] ================================================================== [ 750.346814] [ T9870] BUG: KASAN: slab-out-of-bounds in smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.347330] [ T9870] Write of size 8 at addr ffff888011082890 by task xfs_io/9870 [ 750.347705] [ T9870] [ 750.348077] [ T9870] CPU: 0 UID: 0 PID: 9870 Comm: xfs_io Kdump: loaded Not tainted 6.16.0-rc2-metze.02+ #1 PREEMPT(voluntary) [ 750.348082] [ T9870] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 750.348085] [ T9870] Call Trace: [ 750.348086] [ T9870] <TASK> [ 750.348088] [ T9870] dump_stack_lvl+0x76/0xa0 [ 750.348106] [ T9870] print_report+0xd1/0x640 [ 750.348116] [ T9870] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 750.348120] [ T9870] ? kasan_complete_mode_report_info+0x26/0x210 [ 750.348124] [ T9870] kasan_report+0xe7/0x130 [ 750.348128] [ T9870] ? smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.348262] [ T9870] ? smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.348377] [ T9870] __asan_report_store8_noabort+0x17/0x30 [ 750.348381] [ T9870] smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.348496] [ T9870] smbd_post_send_iter+0x1990/0x3070 [cifs] [ 750.348625] [ T9870] ? __pfx_smbd_post_send_iter+0x10/0x10 [cifs] [ 750.348741] [ T9870] ? update_stack_state+0x2a0/0x670 [ 750.348749] [ T9870] ? cifs_flush+0x153/0x320 [cifs] [ 750.348870] [ T9870] ? cifs_flush+0x153/0x320 [cifs] [ 750.348990] [ T9870] ? update_stack_state+0x2a0/0x670 [ 750.348995] [ T9870] smbd_send+0x58c/0x9c0 [cifs] [ 750.349117] [ T9870] ? __pfx_smbd_send+0x10/0x10 [cifs] [ 750.349231] [ T9870] ? unwind_get_return_address+0x65/0xb0 [ 750.349235] [ T9870] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 750.349242] [ T9870] ? arch_stack_walk+0xa7/0x100 [ 750.349250] [ T9870] ? stack_trace_save+0x92/0xd0 [ 750.349254] [ T9870] __smb_send_rqst+0x931/0xec0 [cifs] [ 750.349374] [ T9870] ? kernel_text_address+0x173/0x190 [ 750.349379] [ T9870] ? kasan_save_stack+0x39/0x70 [ 750.349382] [ T9870] ? kasan_save_track+0x18/0x70 [ 750.349385] [ T9870] ? __kasan_slab_alloc+0x9d/0xa0 [ 750.349389] [ T9870] ? __pfx___smb_send_rqst+0x10/0x10 [cifs] [ 750.349508] [ T9870] ? smb2_mid_entry_alloc+0xb4/0x7e0 [cifs] [ 750.349626] [ T9870] ? cifs_call_async+0x277/0xb00 [cifs] [ 750.349746] [ T9870] ? cifs_issue_write+0x256/0x610 [cifs] [ 750.349867] [ T9870] ? netfs_do_issue_write+0xc2/0x340 [netfs] [ 750.349900] [ T9870] ? netfs_advance_write+0x45b/0x1270 [netfs] [ 750.349929] [ T9870] ? netfs_write_folio+0xd6c/0x1be0 [netfs] [ 750.349958] [ T9870] ? netfs_writepages+0x2e9/0xa80 [netfs] [ 750.349987] [ T9870] ? do_writepages+0x21f/0x590 [ 750.349993] [ T9870] ? filemap_fdatawrite_wbc+0xe1/0x140 [ 750.349997] [ T9870] ? entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 750.350002] [ T9870] smb_send_rqst+0x22e/0x2f0 [cifs] [ 750.350131] [ T9870] ? __pfx_smb_send_rqst+0x10/0x10 [cifs] [ 750.350255] [ T9870] ? local_clock_noinstr+0xe/0xd0 [ 750.350261] [ T9870] ? kasan_save_alloc_info+0x37/0x60 [ 750.350268] [ T9870] ? __kasan_check_write+0x14/0x30 [ 750.350271] [ T9870] ? _raw_spin_lock+0x81/0xf0 [ 750.350275] [ T9870] ? __pfx__raw_spin_lock+0x10/0x10 [ 750.350278] [ T9870] ? smb2_setup_async_request+0x293/0x580 [cifs] [ 750.350398] [ T9870] cifs_call_async+0x477/0xb00 [cifs] [ 750.350518] [ T9870] ? __pfx_smb2_writev_callback+0x10/0x10 [cifs] [ 750.350636] [ T9870] ? __pfx_cifs_call_async+0x10/0x10 [cifs] [ 750.350756] [ T9870] ? __pfx__raw_spin_lock+0x10/0x10 [ 750.350760] [ T9870] ? __kasan_check_write+0x14/0x30 [ 750.350763] [ T98 ---truncated---
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.19%
- Percentil entre todas las CVEs puntuadas: 8
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation75 % - Impacto principal
T1059Command and Scripting Interpreterexecution45 %
AV:L/PR:L sin UI indica escalada local. Buffer overflow (CWE-787) en kernel CIFS puede permitir ejecución de código, pero sin evidencia de RCE o impacto definido más allá del desbordamiento de memoria.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-787
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-38179",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "c45ebd636c32d33c75e51ce977520ff146bd41a1",
"lessThan": "8ae7814589d7bd850294ac14ec4c1725dafd42ca",
"versionType": "git"
},
{
"status": "affected",
"version": "c45ebd636c32d33c75e51ce977520ff146bd41a1",
"lessThan": "e0ba9b2f188166550296005e64b15e80db82ad8a",
"versionType": "git"
},
{
"status": "affected",
"version": "c45ebd636c32d33c75e51ce977520ff146bd41a1",
"lessThan": "a379a8a2a0032e12e7ef397197c9c2ad011588d6",
"versionType": "git"
}
],
"programFiles": [
"fs/smb/client/smbdirect.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.35",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.4",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/smb/client/smbdirect.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-07-04T14:15:24.553",
"references": [
{
"url": "https://git.kernel.org/stable/c/8ae7814589d7bd850294ac14ec4c1725dafd42ca",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a379a8a2a0032e12e7ef397197c9c2ad011588d6",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
"url": "https://git.kernel.org/stable/c/e0ba9b2f188166550296005e64b15e80db82ad8a",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix max_sge overflow in smb_extract_folioq_to_rdma()\n\nThis fixes the following problem:\n\n[ 749.901015] [ T8673] run fstests cifs/001 at 2025-06-17 09:40:30\n[ 750.346409] [ T9870] ==================================================================\n[ 750.346814] [ T9870] BUG: KASAN: slab-out-of-bounds in smb_set_sge+0x2cc/0x3b0 [cifs]\n[ 750.347330] [ T9870] Write of size 8 at addr ffff888011082890 by task xfs_io/9870\n[ 750.347705] [ T9870]\n[ 750.348077] [ T9870] CPU: 0 UID: 0 PID: 9870 Comm: xfs_io Kdump: loaded Not tainted 6.16.0-rc2-metze.02+ #1 PREEMPT(voluntary)\n[ 750.348082] [ T9870] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006\n[ 750.348085] [ T9870] Call Trace:\n[ 750.348086] [ T9870] <TASK>\n[ 750.348088] [ T9870] dump_stack_lvl+0x76/0xa0\n[ 750.348106] [ T9870] print_report+0xd1/0x640\n[ 750.348116] [ T9870] ? __pfx__raw_spin_lock_irqsave+0x10/0x10\n[ 750.348120] [ T9870] ? kasan_complete_mode_report_info+0x26/0x210\n[ 750.348124] [ T9870] kasan_report+0xe7/0x130\n[ 750.348128] [ T9870] ? smb_set_sge+0x2cc/0x3b0 [cifs]\n[ 750.348262] [ T9870] ? smb_set_sge+0x2cc/0x3b0 [cifs]\n[ 750.348377] [ T9870] __asan_report_store8_noabort+0x17/0x30\n[ 750.348381] [ T9870] smb_set_sge+0x2cc/0x3b0 [cifs]\n[ 750.348496] [ T9870] smbd_post_send_iter+0x1990/0x3070 [cifs]\n[ 750.348625] [ T9870] ? __pfx_smbd_post_send_iter+0x10/0x10 [cifs]\n[ 750.348741] [ T9870] ? update_stack_state+0x2a0/0x670\n[ 750.348749] [ T9870] ? cifs_flush+0x153/0x320 [cifs]\n[ 750.348870] [ T9870] ? cifs_flush+0x153/0x320 [cifs]\n[ 750.348990] [ T9870] ? update_stack_state+0x2a0/0x670\n[ 750.348995] [ T9870] smbd_send+0x58c/0x9c0 [cifs]\n[ 750.349117] [ T9870] ? __pfx_smbd_send+0x10/0x10 [cifs]\n[ 750.349231] [ T9870] ? unwind_get_return_address+0x65/0xb0\n[ 750.349235] [ T9870] ? __pfx_stack_trace_consume_entry+0x10/0x10\n[ 750.349242] [ T9870] ? arch_stack_walk+0xa7/0x100\n[ 750.349250] [ T9870] ? stack_trace_save+0x92/0xd0\n[ 750.349254] [ T9870] __smb_send_rqst+0x931/0xec0 [cifs]\n[ 750.349374] [ T9870] ? kernel_text_address+0x173/0x190\n[ 750.349379] [ T9870] ? kasan_save_stack+0x39/0x70\n[ 750.349382] [ T9870] ? kasan_save_track+0x18/0x70\n[ 750.349385] [ T9870] ? __kasan_slab_alloc+0x9d/0xa0\n[ 750.349389] [ T9870] ? __pfx___smb_send_rqst+0x10/0x10 [cifs]\n[ 750.349508] [ T9870] ? smb2_mid_entry_alloc+0xb4/0x7e0 [cifs]\n[ 750.349626] [ T9870] ? cifs_call_async+0x277/0xb00 [cifs]\n[ 750.349746] [ T9870] ? cifs_issue_write+0x256/0x610 [cifs]\n[ 750.349867] [ T9870] ? netfs_do_issue_write+0xc2/0x340 [netfs]\n[ 750.349900] [ T9870] ? netfs_advance_write+0x45b/0x1270 [netfs]\n[ 750.349929] [ T9870] ? netfs_write_folio+0xd6c/0x1be0 [netfs]\n[ 750.349958] [ T9870] ? netfs_writepages+0x2e9/0xa80 [netfs]\n[ 750.349987] [ T9870] ? do_writepages+0x21f/0x590\n[ 750.349993] [ T9870] ? filemap_fdatawrite_wbc+0xe1/0x140\n[ 750.349997] [ T9870] ? entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[ 750.350002] [ T9870] smb_send_rqst+0x22e/0x2f0 [cifs]\n[ 750.350131] [ T9870] ? __pfx_smb_send_rqst+0x10/0x10 [cifs]\n[ 750.350255] [ T9870] ? local_clock_noinstr+0xe/0xd0\n[ 750.350261] [ T9870] ? kasan_save_alloc_info+0x37/0x60\n[ 750.350268] [ T9870] ? __kasan_check_write+0x14/0x30\n[ 750.350271] [ T9870] ? _raw_spin_lock+0x81/0xf0\n[ 750.350275] [ T9870] ? __pfx__raw_spin_lock+0x10/0x10\n[ 750.350278] [ T9870] ? smb2_setup_async_request+0x293/0x580 [cifs]\n[ 750.350398] [ T9870] cifs_call_async+0x477/0xb00 [cifs]\n[ 750.350518] [ T9870] ? __pfx_smb2_writev_callback+0x10/0x10 [cifs]\n[ 750.350636] [ T9870] ? __pfx_cifs_call_async+0x10/0x10 [cifs]\n[ 750.350756] [ T9870] ? __pfx__raw_spin_lock+0x10/0x10\n[ 750.350760] [ T9870] ? __kasan_check_write+0x14/0x30\n[ 750.350763] [ T98\n---truncated---"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: corregir desbordamiento de max_sge en smb_extract_folioq_to_rdma() Esto corrige el siguiente problema: [ 749.901015] [ T8673] ejecutar fstests cifs/001 a las 2025-06-17 09:40:30 [ 750.346409] [ T9870] ====================================================================== [ 750.346814] [ T9870] ERROR: KASAN: slab-out-of-bounds in smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.347330] [ T9870] Write of size 8 at addr ffff888011082890 by task xfs_io/9870 [ 750.347705] [ T9870] [ 750.348077] [ T9870] CPU: 0 UID: 0 PID: 9870 Comm: xfs_io Kdump: loaded Not tainted 6.16.0-rc2-metze.02+ #1 PREEMPT(voluntary) [ 750.348082] [ T9870] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 750.348085] [ T9870] Call Trace: [ 750.348086] [ T9870] [ 750.348088] [ T9870] dump_stack_lvl+0x76/0xa0 [ 750.348106] [ T9870] print_report+0xd1/0x640 [ 750.348116] [ T9870] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 750.348120] [ T9870] ? kasan_complete_mode_report_info+0x26/0x210 [ 750.348124] [ T9870] kasan_report+0xe7/0x130 [ 750.348128] [ T9870] ? smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.348262] [ T9870] ? smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.348377] [ T9870] __asan_report_store8_noabort+0x17/0x30 [ 750.348381] [ T9870] smb_set_sge+0x2cc/0x3b0 [cifs] [ 750.348496] [ T9870] smbd_post_send_iter+0x1990/0x3070 [cifs] [ 750.348625] [ T9870] ? __pfx_smbd_post_send_iter+0x10/0x10 [cifs] [ 750.348741] [ T9870] ? update_stack_state+0x2a0/0x670 [ 750.348749] [ T9870] ? cifs_flush+0x153/0x320 [cifs] [ 750.348870] [ T9870] ? cifs_flush+0x153/0x320 [cifs] [ 750.348990] [ T9870] ? update_stack_state+0x2a0/0x670 [ 750.348995] [ T9870] smbd_send+0x58c/0x9c0 [cifs] [ 750.349117] [ T9870] ? __pfx_smbd_send+0x10/0x10 [cifs] [ 750.349231] [ T9870] ? unwind_get_return_address+0x65/0xb0 [ 750.349235] [ T9870] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 750.349242] [ T9870] ? arch_stack_walk+0xa7/0x100 [ 750.349250] [ T9870] ? stack_trace_save+0x92/0xd0 [ 750.349254] [ T9870] __smb_send_rqst+0x931/0xec0 [cifs] [ 750.349374] [ T9870] ? kernel_text_address+0x173/0x190 [ 750.349379] [ T9870] ? kasan_save_stack+0x39/0x70 [ 750.349382] [ T9870] ? kasan_save_track+0x18/0x70 [ 750.349385] [ T9870] ? __kasan_slab_alloc+0x9d/0xa0 [ 750.349389] [ T9870] ? __pfx___smb_send_rqst+0x10/0x10 [cifs] [ 750.349508] [ T9870] ? smb2_mid_entry_alloc+0xb4/0x7e0 [cifs] [ 750.349626] [ T9870] ? cifs_call_async+0x277/0xb00 [cifs] [ 750.349746] [ T9870] ? cifs_issue_write+0x256/0x610 [cifs] [ 750.349867] [ T9870] ? netfs_do_issue_write+0xc2/0x340 [netfs] [ 750.349900] [ T9870] ? netfs_advance_write+0x45b/0x1270 [netfs] [ 750.349929] [ T9870] ? netfs_write_folio+0xd6c/0x1be0 [netfs] [ 750.349958] [ T9870] ? netfs_writepages+0x2e9/0xa80 [netfs] [ 750.349987] [ T9870] ? do_writepages+0x21f/0x590 [ 750.349993] [ T9870] ? filemap_fdatawrite_wbc+0xe1/0x140 [ 750.349997] [ T9870] ? entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 750.350002] [ T9870] smb_send_rqst+0x22e/0x2f0 [cifs] [ 750.350131] [ T9870] ? __pfx_smb_send_rqst+0x10/0x10 [cifs] [ 750.350255] [ T9870] ? local_clock_noinstr+0xe/0xd0 [ 750.350261] [ T9870] ? kasan_save_alloc_info+0x37/0x60 [ 750.350268] [ T9870] ? __kasan_check_write+0x14/0x30 [ 750.350271] [ T9870] ? _raw_spin_lock+0x81/0xf0 [ 750.350275] [ T9870] ? __pfx__raw_spin_lock+0x10/0x10 [ 750.350278] [ T9870] ? smb2_setup_async_request+0x293/0x580 [cifs] [ 750.350398] [ T9870] cifs_call_async+0x477/0xb00 [cifs] [ 750.350518] [ T9870] ? __pfx_smb2_writev_callback+0x10/0x10 [cifs] [ 750.350636] [ T9870] ? __pfx_cifs_call_async+0x10/0x10 [cifs] [ 750.350756] [ T9870] ? __pfx__raw_spin_lock+0x10/0x10 [ 750.350760] [ T9870] ? __kasan_check_write+0x14/0x30 [ 750.350763] [ T98 ---truncado---"
}
],
"lastModified": "2026-07-30T06:22:57.910",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B9A5A6B0-4B32-4F26-8142-EF867203ADBB",
"versionEndExcluding": "6.12.35",
"versionStartIncluding": "6.12"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DFD174C5-1AA2-4671-BDDC-1A9FCC753655",
"versionEndExcluding": "6.15.4",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01"
},
{
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