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CVE PROGRAM SOURCE RECORD6.8 Medium

CVE-2026-53196

USB: serial: io_ti: fix heap overflow in get_manuf_info()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in get_manuf_info() get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the device I2C EEPROM into a buffer allocated with kmalloc_obj(), which is sizeof(struct edge_ti_manuf_descriptor) = 10 bytes. The Size field comes from the device and is only validated (in check_i2c_image()) to make sure the descriptor fits within TI_MAX_I2C_SIZE (16384 bytes), not against the destination buffer size. A malicious USB device can therefore set Size to any value up to 16377, causing a heap overflow of up to 16367 bytes when plugged into a host running this driver. valid_csum() is called after read_rom() and also iterates buffer[0..Size-1], compounding the out-of-bounds access. Fix by rejecting descriptors with unexpected length before calling read_rom(). [ johan: amend commit message; also check for short descriptors ]

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 < e168db91442b94e64fa82a7dd297983d48ea5cc0affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 561edb021486e6723d841926aa4b48097da06190affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < cfd634f6dfd40c49a84f9bddc2867a80e2e2623aaffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d92f17af7097d10bdeddf26f66f34b354104b277affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b849f30d1a9e66aae6b715aaef66e427390cb081affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < f96cf7bf9fbf15d7fcf0c91fec47ba8a010369eaaffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d214d2341d4f9f447e36a7d012cdf6a6631a55f1affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 183c1076eca43bbb3e7bdf597456f91d81c73e74affected

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
  • 6.18.36 to ≤ 6.18.*unaffected
  • 7.0.13 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References