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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-63898

USB: serial: mct_u232: fix memory corruption with small endpoint

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix memory corruption with small endpoint The driver overrides the maximum transfer size for a specific device which only accepts 16 byte packets for its 32 byte bulk-out endpoint. Make sure to never increase the maximum transfer size to prevent slab corruption should a malicious device report a smaller endpoint max packet size than expected.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 94edbbc5fe00d03cfe1d4e690d7d2cd36317a935affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < bd2ddb3fe9052ad8703593bbec26ecc7ca92869eaffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 39e295a91e80f3b91f61c7ada2bde434dcaba20daffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 90dbad14b109e5fdfb4934ff61e561d11ba3742daffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 6cb48f8890f9b2051d7c34823057296a536a31c5affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d8fdf33d6fcfb90cbec26299baf2352c84b2d768affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 57f332af1745014cd7e40414814ffaa6bc7d3b5baffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 915b36d701950503c4ea0f6e314b10868e59fce3affected

Linux Linux

Default version status: affected

  • 2.6.12affected
  • 0 to < 2.6.12unaffected
  • 5.10.259 to ≤ 5.10.*unaffected
  • 5.15.210 to ≤ 5.15.*unaffected
  • 6.1.176 to ≤ 6.1.*unaffected
  • 6.6.143 to ≤ 6.6.*unaffected
  • 6.12.94 to ≤ 6.12.*unaffected
  • 6.18.35 to ≤ 6.18.*unaffected
  • 7.0.12 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References