CVE-2025-38391
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…
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.18% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/114a977e0f6bf278e05eade055e13fc271f69cf7Patch
- https://git.kernel.org/stable/c/2f535517b5611b7221ed478527e4b58e29536ddfPatch
- https://git.kernel.org/stable/c/45e9444b3b97eaf51a5024f1fea92f44f39b50c6Patch
- https://git.kernel.org/stable/c/47cb5d26f61d80c805d7de4106451153779297a1Patch
- https://git.kernel.org/stable/c/5581e694d3a1c2f32c5a51d745c55b107644e1f8Patch
- https://git.kernel.org/stable/c/621d5a3ef0231ab242f2d31eecec40c38ca609c5Patch
- https://git.kernel.org/stable/c/af4db5a35a4ef7a68046883bfd12468007db38f1Patch
- https://git.kernel.org/stable/c/c93bc959788ed9a1af7df57cb539837bdf790ceePatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.