CVE-2025-38391

Summary

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

usb: typec: altmodes/displayport: do not index invalid pin_assignments

A poorly implemented DisplayPort Alt Mode port partner can indicate that its pin assignment capabilities are greater than the maximum value, DP_PIN_ASSIGN_F. In this case, calls to pin_assignment_show will cause a BRK exception due to an out of bounds array access.

Prevent for loop in pin_assignment_show from accessing invalid values in pin_assignments by adding DP_PIN_ASSIGN_MAX value in typec_dp.h and using i < DP_PIN_ASSIGN_MAX as a loop condition.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < c93bc959788ed9a1af7df57cb539837bdf790ceeaffected
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 114a977e0f6bf278e05eade055e13fc271f69cf7affected
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 621d5a3ef0231ab242f2d31eecec40c38ca609c5affected
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 2f535517b5611b7221ed478527e4b58e29536ddfaffected
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 45e9444b3b97eaf51a5024f1fea92f44f39b50c6affected
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 5581e694d3a1c2f32c5a51d745c55b107644e1f8affected
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 47cb5d26f61d80c805d7de4106451153779297a1affected
LinuxLinux0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < af4db5a35a4ef7a68046883bfd12468007db38f1affected
LinuxLinux4.19affected
LinuxLinux0 < 4.19unaffected
LinuxLinux5.4.296 <= 5.4.*unaffected
LinuxLinux5.10.240 <= 5.10.*unaffected
LinuxLinux5.15.187 <= 5.15.*unaffected
LinuxLinux6.1.144 <= 6.1.*unaffected
LinuxLinux6.6.97 <= 6.6.*unaffected
LinuxLinux6.12.37 <= 6.12.*unaffected
LinuxLinux6.15.6 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References