{"id":"CVE-2025-38391","summary":"usb: typec: altmodes/displayport: do not index invalid pin_assignments","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmodes/displayport: do not index invalid pin_assignments\n\nA poorly implemented DisplayPort Alt Mode port partner can indicate\nthat its pin assignment capabilities are greater than the maximum\nvalue, DP_PIN_ASSIGN_F. In this case, calls to pin_assignment_show\nwill cause a BRK exception due to an out of bounds array access.\n\nPrevent for loop in pin_assignment_show from accessing\ninvalid values in pin_assignments by adding DP_PIN_ASSIGN_MAX\nvalue in typec_dp.h and using i \u003c DP_PIN_ASSIGN_MAX as a loop\ncondition.","modified":"2026-03-20T12:42:50.357249Z","published":"2025-07-25T12:53:31.223Z","related":["MGASA-2025-0218","MGASA-2025-0219","SUSE-SU-2025:02846-1","SUSE-SU-2025:02853-1","SUSE-SU-2025:02923-1","SUSE-SU-2025:02969-1","SUSE-SU-2025:02996-1","SUSE-SU-2025:02997-1","SUSE-SU-2025:03011-1","SUSE-SU-2025:03023-1","SUSE-SU-2025:20577-1","SUSE-SU-2025:20586-1","SUSE-SU-2025:20601-1","SUSE-SU-2025:20602-1","SUSE-SU-2025:21074-1","SUSE-SU-2025:21139-1","SUSE-SU-2025:21179-1","openSUSE-SU-2025:20081-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38391.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/114a977e0f6bf278e05eade055e13fc271f69cf7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2f535517b5611b7221ed478527e4b58e29536ddf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/45e9444b3b97eaf51a5024f1fea92f44f39b50c6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/47cb5d26f61d80c805d7de4106451153779297a1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5581e694d3a1c2f32c5a51d745c55b107644e1f8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/621d5a3ef0231ab242f2d31eecec40c38ca609c5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/af4db5a35a4ef7a68046883bfd12468007db38f1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c93bc959788ed9a1af7df57cb539837bdf790cee"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38391.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38391"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588"},{"fixed":"c93bc959788ed9a1af7df57cb539837bdf790cee"},{"fixed":"114a977e0f6bf278e05eade055e13fc271f69cf7"},{"fixed":"621d5a3ef0231ab242f2d31eecec40c38ca609c5"},{"fixed":"2f535517b5611b7221ed478527e4b58e29536ddf"},{"fixed":"45e9444b3b97eaf51a5024f1fea92f44f39b50c6"},{"fixed":"5581e694d3a1c2f32c5a51d745c55b107644e1f8"},{"fixed":"47cb5d26f61d80c805d7de4106451153779297a1"},{"fixed":"af4db5a35a4ef7a68046883bfd12468007db38f1"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38391.json"}}],"schema_version":"1.7.5"}