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fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write The trailing byte path in altera_cvp_send_block() dereferences a u32 pointer even when only 1-3 bytes remain in the input buffer. If the buffer ends at a page or scatterlist boundary, this can read past the valid image data and fault. Copy the remaining bytes into a zero-initialized u32 before writing the final word so only valid bytes are read from the input buffer.

Announced Source revision 1
Original source ↗

CVE-2026-89730

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-89730

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "447b3c893987a0106a65f04b62ec3271892e9d98",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "3b8938f5fbcf4a918785f9cb4b108782eb4ea717",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "2564ac3d3b8b47cd9692a5bf42d668ed7218b54e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "8f3365ed2a5db2ac95ab70a6c47561db39d24537",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "b138bc665e21d4422382ab43aebdf0a2b7bb9cb3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "827ec385458adeeda651de2b6f3537e386b1a8d9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "4dc1051939e499c838229af035464a5fc7671198",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
        "lessThan": "9da70a43b5fea60d758137f7f0ccfe19356cb5bb",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/fpga/altera-cvp.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.14"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.14",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.109",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.50",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.4",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/fpga/altera-cvp.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89730

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#35207 · Revision 1
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Publisher date
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