CVE-2025-71099
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Fix potential UAF in xe_oa_add_config_ioctl() In xe_oa_add_config_ioctl(), we accessed oa_config->id after dropping metrics_lock. Since this lock protects the lifetime of oa_config, an attacker could guess the id and call xe_oa_remove_config_ioctl() with perfect timing, freeing oa_config before we dereference it, leading to a potential use-after-free. Fix this by caching the id in a local variable while holding the lock. v2: (Matt A) - Dropped mutex_unlock(&oa->metrics_lock) ordering change from xe_oa_remove_config_ioctl() (cherry picked from commit 28aeaed130e8e587fd1b73b6d66ca41ccc5a1a31)
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-01-13 16:16:09.820000
Last modified
2026-10-19 19:17:11.953000
View original CVE JSON
{
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-01-13T16:16:09.820",
"lastModified": "2026-10-19T19:17:11.953",
"vulnStatus": "Modified",
"cveTags": [],
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Fix potential UAF in xe_oa_add_config_ioctl()\n\nIn xe_oa_add_config_ioctl(), we accessed oa_config->id after dropping\nmetrics_lock. Since this lock protects the lifetime of oa_config, an\nattacker could guess the id and call xe_oa_remove_config_ioctl() with\nperfect timing, freeing oa_config before we dereference it, leading to\na potential use-after-free.\n\nFix this by caching the id in a local variable while holding the lock.\n\nv2: (Matt A)\n- Dropped mutex_unlock(&oa->metrics_lock) ordering change from\n xe_oa_remove_config_ioctl()\n\n(cherry picked from commit 28aeaed130e8e587fd1b73b6d66ca41ccc5a1a31)"
},
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"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/xe/oa: Corrige un potencial uso después de liberación en xe_oa_add_config_ioctl()\n\nEn xe_oa_add_config_ioctl(), accedimos a oa_config->id después de liberar metrics_lock. Dado que este bloqueo protege la vida útil de oa_config, un atacante podría adivinar el id y llamar a xe_oa_remove_config_ioctl() con una sincronización perfecta, liberando oa_config antes de que lo desreferenciemos, lo que lleva a un potencial uso después de liberación.\n\nEsto se corrige al almacenar en caché el id en una variable local mientras se mantiene el bloqueo.\n\nv2: (Matt A)\n- Se eliminó el cambio de orden de mutex_unlock(&oa->metrics_lock) de xe_oa_remove_config_ioctl()\n\n(cherry picked from commit 28aeaed130e8e587fd1b73b6d66ca41ccc5a1a31)"
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"description": [
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