FKIE_CVE-2026-98296

Vulnerability from fkie_nvd - Published: 2026-10-06 09:18 - Updated: 2026-10-19 10:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel_pcie: validate TX skb length in send_sync btintel_pcie_prepare_tx() copies skb->len bytes into a fixed BTINTEL_PCIE_BUFFER_SIZE (4096) DMA slot via an unchecked memcpy. Oversized packets are currently rejected only in btintel_pcie_send_frame(); any future caller of btintel_pcie_send_sync() would silently overflow the DMA buffer. Add the bounds check in btintel_pcie_send_sync() itself, right before skb_push() and the DMA copy.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4b837ebd0ea21ae5cc26f02dc042edc6fe7b46b9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/84f353256e170dc4865d45007d1bc446ed566da7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c298a61e18029401486c40298a50fbeea7e7b663
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btintel_pcie.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "84f353256e170dc4865d45007d1bc446ed566da7",
              "status": "affected",
              "version": "6e65a09f927566f257322358d429b267548473eb",
              "versionType": "git"
            },
            {
              "lessThan": "c298a61e18029401486c40298a50fbeea7e7b663",
              "status": "affected",
              "version": "6e65a09f927566f257322358d429b267548473eb",
              "versionType": "git"
            },
            {
              "lessThan": "4b837ebd0ea21ae5cc26f02dc042edc6fe7b46b9",
              "status": "affected",
              "version": "6e65a09f927566f257322358d429b267548473eb",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btintel_pcie.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel_pcie: validate TX skb length in send_sync\n\nbtintel_pcie_prepare_tx() copies skb-\u003elen bytes into a fixed\nBTINTEL_PCIE_BUFFER_SIZE (4096) DMA slot via an unchecked memcpy.\nOversized packets are currently rejected only in\nbtintel_pcie_send_frame(); any future caller of\nbtintel_pcie_send_sync() would silently overflow the DMA buffer.\n\nAdd the bounds check in btintel_pcie_send_sync() itself, right\nbefore skb_push() and the DMA copy."
    }
  ],
  "id": "CVE-2026-98296",
  "lastModified": "2026-10-19T10:18:31.397",
  "metrics": {},
  "published": "2026-10-06T09:18:20.280",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4b837ebd0ea21ae5cc26f02dc042edc6fe7b46b9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/84f353256e170dc4865d45007d1bc446ed566da7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c298a61e18029401486c40298a50fbeea7e7b663"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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