CVE-2025-68189
In the Linux kernel, the following vulnerability has been resolved:
drm/msm: Fix GEM free for imported dma-bufs
Imported dma-bufs also have obj->resv != &obj->_resv. So we should check both this condition in addition to flags for handling the _NO_SHARE case.
Fixes this splat that was reported with IRIS video playback:
Patchwork: https://patchwork.freedesktop.org/patch/676273/
Detalles técnicos trazas, registros y código del informe original
------------[ cut here ]------------
WARNING: CPU: 3 PID: 2040 at drivers/gpu/drm/msm/msm_gem.c:1127 msm_gem_free_object+0x1f8/0x264 [msm]
CPU: 3 UID: 1000 PID: 2040 Comm: .gnome-shell-wr Not tainted 6.17.0-rc7 #1 PREEMPT
pstate: 81400005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : msm_gem_free_object+0x1f8/0x264 [msm]
lr : msm_gem_free_object+0x138/0x264 [msm]
sp : ffff800092a1bb30
x29: ffff800092a1bb80 x28: ffff800092a1bce8 x27: ffffbc702dbdbe08
x26: 0000000000000008 x25: 0000000000000009 x24: 00000000000000a6
x23: ffff00083c72f850 x22: ffff00083c72f868 x21: ffff00087e69f200
x20: ffff00087e69f330 x19: ffff00084d157ae0 x18: 0000000000000000
x17: 0000000000000000 x16: ffffbc704bd46b80 x15: 0000ffffd0959540
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
x11: ffffbc702e6cdb48 x10: 0000000000000000 x9 : 000000000000003f
x8 : ffff800092a1ba90 x7 : 0000000000000000 x6 : 0000000000000020
x5 : ffffbc704bd46c40 x4 : fffffdffe102cf60 x3 : 0000000000400032
x2 : 0000000000020000 x1 : ffff00087e6978e8 x0 : ffff00087e6977e8
Call trace:
msm_gem_free_object+0x1f8/0x264 [msm] (P)
drm_gem_object_free+0x1c/0x30 [drm]
drm_gem_object_handle_put_unlocked+0x138/0x150 [drm]
drm_gem_object_release_handle+0x5c/0xcc [drm]
drm_gem_handle_delete+0x68/0xbc [drm]
drm_gem_close_ioctl+0x34/0x40 [drm]
drm_ioctl_kernel+0xc0/0x130 [drm]
drm_ioctl+0x360/0x4e0 [drm]
__arm64_sys_ioctl+0xac/0x104
invoke_syscall+0x48/0x104
el0_svc_common.constprop.0+0x40/0xe0
do_el0_svc+0x1c/0x28
el0_svc+0x34/0xec
el0t_64_sync_handler+0xa0/0xe4
el0t_64_sync+0x198/0x19c
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------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: 0.14%
- Percentil entre todas las CVEs puntuadas: 3
- 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
T1499.004Application or System Exploitationimpact70 % - Impacto secundario
T1561.002Disk Structure Wipeimpact55 %
Vulnerabilidad local de kernel (AV:L/PR:L) sin interacción que causa fallo en liberación de memoria (dma-buf), permitiendo DoS o corrupción de datos de otros procesos con privilegios de usuario.
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-68189",
"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
}
]
},
"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": "de651b6e040ba419418a37401e45d24f133e8a59",
"lessThan": "9674c4cb2fe62727a2e4d3f66065ab949dfa61be",
"versionType": "git"
},
{
"status": "affected",
"version": "de651b6e040ba419418a37401e45d24f133e8a59",
"lessThan": "c34e08ba6c0037a72a7433741225b020c989e4ae",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/msm/msm_gem.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.17.8",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/msm/msm_gem.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-12-16T14:15:51.567",
"references": [
{
"url": "https://git.kernel.org/stable/c/9674c4cb2fe62727a2e4d3f66065ab949dfa61be",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c34e08ba6c0037a72a7433741225b020c989e4ae",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: Fix GEM free for imported dma-bufs\n\nImported dma-bufs also have obj->resv != &obj->_resv. So we should\ncheck both this condition in addition to flags for handling the\n_NO_SHARE case.\n\nFixes this splat that was reported with IRIS video playback:\n\n ------------[ cut here ]------------\n WARNING: CPU: 3 PID: 2040 at drivers/gpu/drm/msm/msm_gem.c:1127 msm_gem_free_object+0x1f8/0x264 [msm]\n CPU: 3 UID: 1000 PID: 2040 Comm: .gnome-shell-wr Not tainted 6.17.0-rc7 #1 PREEMPT\n pstate: 81400005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n pc : msm_gem_free_object+0x1f8/0x264 [msm]\n lr : msm_gem_free_object+0x138/0x264 [msm]\n sp : ffff800092a1bb30\n x29: ffff800092a1bb80 x28: ffff800092a1bce8 x27: ffffbc702dbdbe08\n x26: 0000000000000008 x25: 0000000000000009 x24: 00000000000000a6\n x23: ffff00083c72f850 x22: ffff00083c72f868 x21: ffff00087e69f200\n x20: ffff00087e69f330 x19: ffff00084d157ae0 x18: 0000000000000000\n x17: 0000000000000000 x16: ffffbc704bd46b80 x15: 0000ffffd0959540\n x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n x11: ffffbc702e6cdb48 x10: 0000000000000000 x9 : 000000000000003f\n x8 : ffff800092a1ba90 x7 : 0000000000000000 x6 : 0000000000000020\n x5 : ffffbc704bd46c40 x4 : fffffdffe102cf60 x3 : 0000000000400032\n x2 : 0000000000020000 x1 : ffff00087e6978e8 x0 : ffff00087e6977e8\n Call trace:\n msm_gem_free_object+0x1f8/0x264 [msm] (P)\n drm_gem_object_free+0x1c/0x30 [drm]\n drm_gem_object_handle_put_unlocked+0x138/0x150 [drm]\n drm_gem_object_release_handle+0x5c/0xcc [drm]\n drm_gem_handle_delete+0x68/0xbc [drm]\n drm_gem_close_ioctl+0x34/0x40 [drm]\n drm_ioctl_kernel+0xc0/0x130 [drm]\n drm_ioctl+0x360/0x4e0 [drm]\n __arm64_sys_ioctl+0xac/0x104\n invoke_syscall+0x48/0x104\n el0_svc_common.constprop.0+0x40/0xe0\n do_el0_svc+0x1c/0x28\n el0_svc+0x34/0xec\n el0t_64_sync_handler+0xa0/0xe4\n el0t_64_sync+0x198/0x19c\n ---[ end trace 0000000000000000 ]---\n ------------[ cut here ]------------\n\nPatchwork: https://patchwork.freedesktop.org/patch/676273/"
}
],
"lastModified": "2026-07-30T06:24:32.877",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}