Riskcovery

CVE-2026-63959

usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT

State
Published
Severity
Not scored
Published
Jul 19, 2026
Updated
Oct 30, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

Description

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

usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT

A broken/malicious port can transmit a CRC-valid frame whose header advertises up to seven data objects but whose body carries fewer than that. Check for this, and rightfully reject the message, instead of reading from uninitialized stack memory.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 6f413b559f86a2894188e082e389ff95ee428345 to before 8a8cd4790b08c9f79ea2250b3bd933fd79f67e56Affected
  • 6f413b559f86a2894188e082e389ff95ee428345 to before 0af00f1459f5dd757f0d392f8caa38039561ac62Affected
  • 6f413b559f86a2894188e082e389ff95ee428345 to before dc17721d42e6d89f63572e63add8306a0e15eb3cAffected
  • 6f413b559f86a2894188e082e389ff95ee428345 to before 9b496e3371c04f0a03b7faa5d2442536d00e3998Affected
  • 6f413b559f86a2894188e082e389ff95ee428345 to before c4ab8e2d4432abb646c5c0687f8dab173da901f9Affected
  • 6f413b559f86a2894188e082e389ff95ee428345 to before aa2f716327be1818e1cb156da8a2844804aaec2fAffected
LinuxLinux
  • 5.10Affected
  • before 5.10Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.143 through 6.6.*Not affected
  • 6.12.93 through 6.12.*Not affected
  • 6.18.35 through 6.18.*Not affected
  • 7.0.12 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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