CVE-2026-74603 PUBLISHED

ptp: ocp: Fix board ID over-read

Assigner: Linux
Reserved: 15.08.2026 Published: 22.08.2026 Updated: 22.08.2026

In the Linux kernel, the following vulnerability has been resolved:

ptp: ocp: Fix board ID over-read

The EEPROM board ID is a fixed 13-byte field and is not guaranteed to contain a NUL terminator. Passing it directly to devlink_info_version_fixed_put() treats it as a C string and may read beyond the field.

Format at most OCP_BOARD_ID_LEN bytes into the existing local buffer before reporting the ID. Use a precision limit because the snprintf() output size alone does not bound the source string scan.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 to 72ef3ce80078199bfad32f98d055f44ba7cd0c3d (excl.)
  • affected from 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 to 3d965811be78473654e6e8cc8e4fb7b6b87aa6c1 (excl.)
  • affected from 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 to f92558bbe78d6284fedd053900f82a70f0aa8707 (excl.)
  • affected from 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 to 5fd91dd4a143479b0575fb1f202ec1c501e71fd5 (excl.)
  • affected from 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 to f8d7e5751267637190eff887c971d5b468106213 (excl.)
  • affected from 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4 to 6b69f2ef10cdb018c0b127a7cab88e590bbddba4 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.18 is affected
  • unaffected from 0 to 5.18 (excl.)
  • unaffected from 6.1.183 to 6.1.* (incl.)
  • unaffected from 6.6.152 to 6.6.* (incl.)
  • unaffected from 6.12.104 to 6.12.* (incl.)
  • unaffected from 6.18.45 to 6.18.* (incl.)
  • unaffected from 7.1.9 to 7.1.* (incl.)
  • unaffected from 7.2 to * (incl.)

References