{"id":"CVE-2025-38391","state":"PUBLISHED","title":"usb: typec: altmodes/displayport: do not index invalid pin_assignments","description":"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 < DP_PIN_ASSIGN_MAX as a loop\ncondition.","publishedAt":"2025-07-25T12:53:31.223Z","updatedAt":"2026-05-11T21:27:04.598Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"c93bc959788ed9a1af7df57cb539837bdf790cee","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"114a977e0f6bf278e05eade055e13fc271f69cf7","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"621d5a3ef0231ab242f2d31eecec40c38ca609c5","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"2f535517b5611b7221ed478527e4b58e29536ddf","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"45e9444b3b97eaf51a5024f1fea92f44f39b50c6","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"5581e694d3a1c2f32c5a51d745c55b107644e1f8","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"47cb5d26f61d80c805d7de4106451153779297a1","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"af4db5a35a4ef7a68046883bfd12468007db38f1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/altmodes/displayport.c","include/linux/usb/typec_dp.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.4.296","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.240","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.187","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.144","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.97","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.37","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.6","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/altmodes/displayport.c","include/linux/usb/typec_dp.h"]}],"references":["https://git.kernel.org/stable/c/c93bc959788ed9a1af7df57cb539837bdf790cee","https://git.kernel.org/stable/c/114a977e0f6bf278e05eade055e13fc271f69cf7","https://git.kernel.org/stable/c/621d5a3ef0231ab242f2d31eecec40c38ca609c5","https://git.kernel.org/stable/c/2f535517b5611b7221ed478527e4b58e29536ddf","https://git.kernel.org/stable/c/45e9444b3b97eaf51a5024f1fea92f44f39b50c6","https://git.kernel.org/stable/c/5581e694d3a1c2f32c5a51d745c55b107644e1f8","https://git.kernel.org/stable/c/47cb5d26f61d80c805d7de4106451153779297a1","https://git.kernel.org/stable/c/af4db5a35a4ef7a68046883bfd12468007db38f1","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38391.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38391","state":"PUBLISHED","datePublished":"2025-07-25T12:53:31.223Z","dateUpdated":"2026-05-11T21:27:04.598Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.011Z"},"containers":{"cna":{"title":"usb: typec: altmodes/displayport: do not index invalid pin_assignments","descriptions":[{"lang":"en","value":"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 < DP_PIN_ASSIGN_MAX as a loop\ncondition."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"c93bc959788ed9a1af7df57cb539837bdf790cee","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"114a977e0f6bf278e05eade055e13fc271f69cf7","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"621d5a3ef0231ab242f2d31eecec40c38ca609c5","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"2f535517b5611b7221ed478527e4b58e29536ddf","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"45e9444b3b97eaf51a5024f1fea92f44f39b50c6","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"5581e694d3a1c2f32c5a51d745c55b107644e1f8","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"47cb5d26f61d80c805d7de4106451153779297a1","versionType":"git"},{"version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","status":"affected","lessThan":"af4db5a35a4ef7a68046883bfd12468007db38f1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/altmodes/displayport.c","include/linux/usb/typec_dp.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.4.296","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.240","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.187","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.144","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.97","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.37","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.6","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/altmodes/displayport.c","include/linux/usb/typec_dp.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/c93bc959788ed9a1af7df57cb539837bdf790cee"},{"url":"https://git.kernel.org/stable/c/114a977e0f6bf278e05eade055e13fc271f69cf7"},{"url":"https://git.kernel.org/stable/c/621d5a3ef0231ab242f2d31eecec40c38ca609c5"},{"url":"https://git.kernel.org/stable/c/2f535517b5611b7221ed478527e4b58e29536ddf"},{"url":"https://git.kernel.org/stable/c/45e9444b3b97eaf51a5024f1fea92f44f39b50c6"},{"url":"https://git.kernel.org/stable/c/5581e694d3a1c2f32c5a51d745c55b107644e1f8"},{"url":"https://git.kernel.org/stable/c/47cb5d26f61d80c805d7de4106451153779297a1"},{"url":"https://git.kernel.org/stable/c/af4db5a35a4ef7a68046883bfd12468007db38f1"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:27:04.598Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.4.296"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.240"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.187"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.144"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.6.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.12.37"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.15.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.16"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE 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