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CVE-2026-17053 SMBus callback-removal syscalls accept an unvalidated user pointer, letting user threads manipulate kernel callback state

🗓️ 01 Oct 2026 15:08:52Reported by zephyrType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Zephyr SMBus driver syscalls accept unvalidated pointers to manipulate kernel callback state.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-17053
1 Oct 202615:08
–cve
euvd
EUVD
EUVD-2026-90880
1 Oct 202615:08
–euvd
nvd
NVD
CVE-2026-17053
1 Oct 202616:17
–nvd
ptsecurity
Positive Technologies
PT-2026-103906
1 Oct 202600:00
–ptsecurity
[
  {
    "vendor": "zephyrproject",
    "product": "zephyr",
    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
    "packageName": "zephyr",
    "defaultStatus": "unaffected",
    "programFiles": [
      "drivers/smbus/smbus_handlers.c",
      "include/zephyr/drivers/smbus.h"
    ],
    "programRoutines": [
      {
        "name": "smbus_callback_remove"
      },
      {
        "name": "z_impl_smbus_host_notify_remove_cb"
      },
      {
        "name": "z_impl_smbus_smbalert_remove_cb"
      },
      {
        "name": "z_vrfy_smbus_host_notify_remove_cb"
      },
      {
        "name": "z_vrfy_smbus_smbalert_remove_cb"
      }
    ],
    "versions": [
      {
        "version": "3.4.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.4.2"
      }
    ]
  }
]

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