CVE-2025-38391
usb: typec: altmodes/displayport: do not index invalid pin_assignments
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < c93bc959788ed9a1af7df57cb539837bdf790cee 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 114a977e0f6bf278e05eade055e13fc271f69cf7 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 621d5a3ef0231ab242f2d31eecec40c38ca609c5 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 2f535517b5611b7221ed478527e4b58e29536ddf 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 45e9444b3b97eaf51a5024f1fea92f44f39b50c6 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 5581e694d3a1c2f32c5a51d745c55b107644e1f8 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < 47cb5d26f61d80c805d7de4106451153779297a1 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 < af4db5a35a4ef7a68046883bfd12468007db38f1
Linux / Linux
4.19
References
git.kernel.org: https://git.kernel.org/stable/c/c93bc959788ed9a1af7df57cb539837bdf790cee git.kernel.org: https://git.kernel.org/stable/c/114a977e0f6bf278e05eade055e13fc271f69cf7 git.kernel.org: https://git.kernel.org/stable/c/621d5a3ef0231ab242f2d31eecec40c38ca609c5 git.kernel.org: https://git.kernel.org/stable/c/2f535517b5611b7221ed478527e4b58e29536ddf git.kernel.org: https://git.kernel.org/stable/c/45e9444b3b97eaf51a5024f1fea92f44f39b50c6 git.kernel.org: https://git.kernel.org/stable/c/5581e694d3a1c2f32c5a51d745c55b107644e1f8 git.kernel.org: https://git.kernel.org/stable/c/47cb5d26f61d80c805d7de4106451153779297a1 git.kernel.org: https://git.kernel.org/stable/c/af4db5a35a4ef7a68046883bfd12468007db38f1 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html