{"id":"CVE-2025-21859","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: gadget: f_midi: f_midi_complete to call queue_work\n\nWhen using USB MIDI, a lock is attempted to be acquired twice through a\nre-entrant call to f_midi_transmit, cau…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: gadget: f_midi: f_midi_complete to call queue_work\n\nWhen using USB MIDI, a lock is attempted to be acquired twice through a\nre-entrant call to f_midi_transmit, cau…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-667"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.2, < 6.1.130","linux_kernel >= 6.2, < 6.6.80","linux_kernel >= 6.7, < 6.12.17","linux_kernel >= 6.13, < 6.13.5","linux_kernel = 6.14"],"patched":["linux_kernel 6.13.5"],"published":"2025-03-12","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:17:39.083","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-21859","references":[{"url":"https://git.kernel.org/stable/c/1f10923404705a94891e612dff3b75e828a78368","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/24a942610ee9bafb2692a456ae850c5b2e409b05","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4ab37fcb42832cdd3e9d5e50653285ca84d6686f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/727dee0857946b85232526de4f5a957fe163e89a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8aa6b4be1f4efccbfc533e6ec8841d26e4fa8dba","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b09957657d7767d164b3432af2129bd72947553c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/deeee3adb2c01eedab32c3b4519337689ad02e8a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e9fec6f42c45db2f62dc373fb1a10d2488c04e79","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00191,"epssPercentile":0.08674,"ingestedAt":"2026-10-15T03:30:12.806Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2025-10-01T19:25:50.980181Z"},"slug":"CVE-2025-21859","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nUSB: gadget: f_midi: f_midi_complete to call queue_work\n\nWhen using USB MIDI, a lock is attempted to be acquired twice through a\nre-entrant call to f_midi_transmit, causing a deadlock.\n\nFix it by using queue_work() to schedule the inner f_midi_transmit() via\na high priority work queue from the completion handler.\n\n## Affected\n\n- `linux_kernel >= 3.2, < 6.1.130`\n- `linux_kernel >= 6.2, < 6.6.80`\n- `linux_kernel >= 6.7, < 6.12.17`\n- `linux_kernel >= 6.13, < 6.13.5`\n- `linux_kernel = 6.14`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.13.5`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}