{
  "cveId": "CVE-2026-72142",
  "url": "https://patchblox.com/security/cve/CVE-2026-72142",
  "summary": "CVE-2026-72142 is fixed in 31 products on 1 platform, first by DEBIAN-CVE-2026-72142, released August 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  i2c: imx: fix locked bus on SMBus block-read of...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  i2c: imx: fix locked bus on SMBus block-read of 0 (atomic)  SMBus 3.1 6.5.7 allows a Block Read byte count of 0, but the atomic (polling) path rejects it as -EPROTO. Worse, it returns without a NACK\u002BSTOP: the next receive cycle has already started, so the target keeps holding SDA and the bus stays stuck until a power cycle for this i2c controller.  Reading I2DR to obtain the count likewise arms the next byte on the count \u003E I2C_SMBUS_BLOCK_MAX path, which also returned -EPROTO directly and left the bus held.  Handle both: NACK the in-flight dummy byte (TXAK) and extend msgs-\u003Elen so the existing last-byte handling emits STOP; the dummy byte is discarded. A count of 0 is a valid empty block read; a count above I2C_SMBUS_BLOCK_MAX is still reported as -EPROTO, but only after the bus has been released.  The interrupt-driven path has the same flaw from a later commit and is fixed separately, as it carries a different Fixes: tag and stable range.",
  "published": "2026-08-15T06:21:31Z",
  "severity": "IMPORTANT",
  "cvss": 5.5,
  "epss": 0.00216,
  "epssPercentile": 0.12158,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
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