{"id":"CVE-2025-38729","title":"ALSA: usb-audio: Validate UAC3 power domain descriptors, too","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Validate UAC3 power domain descriptors, too\n\nUAC3 power domain descriptors need to be verified with its variable\nbLength for avoiding the unexpected OO…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 1666207ba0a5973735ef010812536adde6174e81","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < ebc9e06b6ea978a20abf9b87d41afc51b2d745ac","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < f03418bb9d542f44df78eec2eff4ac83c0a8ac0d","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 40714daf4d0448e1692c78563faf0ed0f9d9b5c7","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 07c8d78dbb5e0ff8b23f7fd69cd1d4e2ba22b3dc","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < cd08d390d15b204cac1d3174f5f149a20c52e61a","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 29b415ec09f5b9d1dfa2423b826725a8c8796b9a","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 452ad54f432675982cc0d6eb6c40a6c86ac61dbd","Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < d832ccbc301fbd9e5a1d691bdcf461cdb514595f","Linux 4.17"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:08:18.008958Z"},"published":"2025-09-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:12:54.561Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38729","references":[{"url":"https://git.kernel.org/stable/c/1666207ba0a5973735ef010812536adde6174e81"},{"url":"https://git.kernel.org/stable/c/ebc9e06b6ea978a20abf9b87d41afc51b2d745ac"},{"url":"https://git.kernel.org/stable/c/f03418bb9d542f44df78eec2eff4ac83c0a8ac0d"},{"url":"https://git.kernel.org/stable/c/40714daf4d0448e1692c78563faf0ed0f9d9b5c7"},{"url":"https://git.kernel.org/stable/c/07c8d78dbb5e0ff8b23f7fd69cd1d4e2ba22b3dc"},{"url":"https://git.kernel.org/stable/c/cd08d390d15b204cac1d3174f5f149a20c52e61a"},{"url":"https://git.kernel.org/stable/c/29b415ec09f5b9d1dfa2423b826725a8c8796b9a"},{"url":"https://git.kernel.org/stable/c/452ad54f432675982cc0d6eb6c40a6c86ac61dbd"},{"url":"https://git.kernel.org/stable/c/d832ccbc301fbd9e5a1d691bdcf461cdb514595f"}],"tags":["cve.org"],"epss":0.002,"epssPercentile":0.09848,"ingestedAt":"2026-11-05T22:38:32.016Z","slug":"CVE-2025-38729","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Validate UAC3 power domain descriptors, too\n\nUAC3 power domain descriptors need to be verified with its variable\nbLength for avoiding the unexpected OOB accesses by malicious\nfirmware, too.\n\n## Affected\n\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 1666207ba0a5973735ef010812536adde6174e81`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < ebc9e06b6ea978a20abf9b87d41afc51b2d745ac`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < f03418bb9d542f44df78eec2eff4ac83c0a8ac0d`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 40714daf4d0448e1692c78563faf0ed0f9d9b5c7`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 07c8d78dbb5e0ff8b23f7fd69cd1d4e2ba22b3dc`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < cd08d390d15b204cac1d3174f5f149a20c52e61a`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 29b415ec09f5b9d1dfa2423b826725a8c8796b9a`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 452ad54f432675982cc0d6eb6c40a6c86ac61dbd`\n- `Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < d832ccbc301fbd9e5a1d691bdcf461cdb514595f`\n- `Linux 4.17`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}