CVE-2025-38391: falha em Linux
usb: typec: altmodes/displayport: do not index invalid pin_assignments
Publicada em · Atualizada em
3Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackepss 0.2%
probabilidade de exploração
0.2%top 92% das CVEs
exploração observada
nãonenhuma fonte reporta
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.
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Referências
https://git.kernel.org/stable/c/114a977e0f6bf278e05eade055e13fc271f69cf7https://git.kernel.org/stable/c/2f535517b5611b7221ed478527e4b58e29536ddfhttps://git.kernel.org/stable/c/45e9444b3b97eaf51a5024f1fea92f44f39b50c6https://git.kernel.org/stable/c/47cb5d26f61d80c805d7de4106451153779297a1https://git.kernel.org/stable/c/5581e694d3a1c2f32c5a51d745c55b107644e1f8https://git.kernel.org/stable/c/621d5a3ef0231ab242f2d31eecec40c38ca609c5https://git.kernel.org/stable/c/af4db5a35a4ef7a68046883bfd12468007db38f1https://git.kernel.org/stable/c/c93bc959788ed9a1af7df57cb539837bdf790ceehttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html