CVE-2026-23434 (GCVE-0-2026-23434)
Vulnerability from cvelistv5
Published
2026-04-03 15:15
Modified
2026-10-19 18:35
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: serialize lock/unlock against other NAND operations nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area without holding the NAND device lock. On controllers that implement SET_FEATURES via multiple low-level PIO commands, these can race with concurrent UBI/UBIFS background erase/write operations that hold the device lock, resulting in cmd_pending conflicts on the NAND controller. Add nand_get_device()/nand_release_device() around the lock/unlock operations to serialize them against all other NAND controller access.
References
Impacted products
Vendor Product Version
Linux Linux Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
Version: 92270086b7e5ada7ab381c06cc3da2e95ed17088
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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