{
  "cveId": "CVE-2026-98807",
  "url": "https://patchblox.com/security/cve/CVE-2026-98807",
  "summary": "CVE-2026-98807 is fixed in 39 products on 1 platform, first by DEBIAN-CVE-2026-98807, released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "net/mlx5: Fix slab-out-of-bounds when handling team device events",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net/mlx5: Fix slab-out-of-bounds when handling team device events  The mlx5_handle_changeupper_event() and mlx5_handle_changeinfodata_event() functions check for LAG masters (which includes both bonding and team devices) but only call bonding-specific APIs. When processing team device events, calling bond_slave_get_rcu() and bond_is_slave_inactive() on team_port structures causes KASAN to detect an out-of-bounds memory access since team_port is smaller than bond slave.  Fix this by wrapping the bond-specific API calls with a check for bonding devices. This allows the function to still process LAG events for both bonding and teams but only calls bond-specific functions when dealing with actual bonding devices.  For mlx5_handle_changeinfodata_event(), keep the explicit bond check as mlx5 doesn\u0027t handle state information for team ports anyway.  Tested with Mellanox ConnectX-5 on Linux 7.2.0-rc6: - Bonding: PASS (no regressions) - Team device: PASS (no KASAN errors)",
  "published": "2026-10-18T16:17:34Z",
  "severity": "Low",
  "cvss": 3.4,
  "epss": 0.00175,
  "epssPercentile": 0.0705,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98807",
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  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
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    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}