{
  "cveId": "CVE-2022-50394",
  "url": "https://patchblox.com/security/cve/CVE-2022-50394",
  "summary": "CVE-2022-50394 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50394, released September 18, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  i2c: ismt: Fix an out-of-bounds bug in ismt_acce...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  i2c: ismt: Fix an out-of-bounds bug in ismt_access()  When the driver does not check the data from the user, the variable \u0027data-\u003Eblock[0]\u0027 may be very large to cause an out-of-bounds bug.  The following log can reveal it:  [   33.995542] i2c i2c-1: ioctl, cmd=0x720, arg=0x7ffcb3dc3a20 [   33.995978] ismt_smbus 0000:00:05.0: I2C_SMBUS_BLOCK_DATA:  WRITE [   33.996475] ================================================================== [   33.996995] BUG: KASAN: out-of-bounds in ismt_access.cold\u002B0x374/0x214b [   33.997473] Read of size 18446744073709551615 at addr ffff88810efcfdb1 by task ismt_poc/485 [   33.999450] Call Trace: [   34.001849]  memcpy\u002B0x20/0x60 [   34.002077]  ismt_access.cold\u002B0x374/0x214b [   34.003382]  __i2c_smbus_xfer\u002B0x44f/0xfb0 [   34.004007]  i2c_smbus_xfer\u002B0x10a/0x390 [   34.004291]  i2cdev_ioctl_smbus\u002B0x2c8/0x710 [   34.005196]  i2cdev_ioctl\u002B0x5ec/0x74c  Fix this bug by checking the size of \u0027data-\u003Eblock[0]\u0027 first.",
  "published": "2025-09-18T14:15:38Z",
  "severity": "high",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.00171,
  "epssPercentile": 0.06552,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.4-1",
      "fix": "DEBIAN-CVE-2022-50394",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50394",
      "released": "2025-09-18T14:15:38Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.4-1",
      "fix": "DEBIAN-CVE-2022-50394",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50394",
      "released": "2025-09-18T14:15:38Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.4-1",
      "fix": "DEBIAN-CVE-2022-50394",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50394",
      "released": "2025-09-18T14:15:38Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}