CVE-2026-74603

Unknown

Last modified

CVE-2026-74603 is a vulnerability of currently unknown severity. 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.

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4, < 72ef3ce80078199bfad32f98d055f44ba7cd0c3d; >= 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4, < 3d965811be78473654e6e8cc8e4fb7b6b87aa6c1; >= 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4, < f92558bbe78d6284fedd053900f82a70f0aa8707; >= 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4, < 5fd91dd4a143479b0575fb1f202ec1c501e71fd5; >= 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4, < f8d7e5751267637190eff887c971d5b468106213; >= 0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4, < 6b69f2ef10cdb018c0b127a7cab88e590bbddba4
LinuxLinux5.18

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-74603?
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.
How severe is CVE-2026-74603?
Severity scoring for CVE-2026-74603 is pending analysis.
How do I fix CVE-2026-74603?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST