{
  "cveId": "CVE-2026-98722",
  "url": "https://patchblox.com/security/cve/CVE-2026-98722",
  "summary": "CVE-2026-98722 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-98722, released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "mtd: block2mtd: Fix divide error when erase_size is zero",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  mtd: block2mtd: Fix divide error when erase_size is zero  The erase size is parsed from the \u0022block2mtd\u0022 module parameter and can be set to zero. add_device() then evaluates          if (size % erase_size)  with a zero divisor, which triggers a divide error:  divide error: 0000 [#1] PREEMPT SMP PTI RIP: 0010:add_device drivers/mtd/devices/block2mtd.c:296 [inline] RIP: 0010:block2mtd_setup2\u002B0x592/0xda0 drivers/mtd/devices/block2mtd.c:459 Call Trace: block2mtd_setup\u002B0x27/0xe0 drivers/mtd/devices/block2mtd.c:476 param_attr_store\u002B0x214/0x310 kernel/params.c:589 module_attr_store\u002B0x65/0x90 kernel/params.c:904 kernfs_fop_write_iter\u002B0x3a4/0x540 fs/kernfs/file.c:345 ...  Reject a zero erase size before performing the modulo operation so the existing \u0022erasesize must be a divisor of device size\u0022 error path reports the invalid argument and frees the device.",
  "published": "2026-10-18T16:17:25Z",
  "severity": "Moderate",
  "cvss": 4.4,
  "epss": 0.00176,
  "epssPercentile": 0.07206,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98722",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98722",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98722",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.10-1",
      "fix": "DEBIAN-CVE-2026-98722",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98722",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.113-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-98722",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98722",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}