{"id":"CVE-2025-38105","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Kill timer properly at removal\n\nThe USB-audio MIDI code initializes the timer, but in a rare case, the\ndriver might be freed without the disconnect cal…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Kill timer properly at removal\n\nThe USB-audio MIDI code initializes the timer, but in a rare case, the\ndriver might be freed without the disconnect cal…","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","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 2.6.14, < 6.6.111","linux_kernel >= 6.7, < 6.12.52","linux_kernel >= 6.13, < 6.15.3"],"patched":["linux_kernel 6.15.3"],"published":"2025-07-03","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:17:51.070","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-38105","references":[{"url":"https://git.kernel.org/stable/c/06513dd6d32c37d0364db8488cfdf3e14da238a8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0718a78f6a9f04b88d0dc9616cc216b31c5f3cf1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/62066758d2ae169278e5d6aea5995b1b6f6ddeb5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/647410a7da46067953a53c0d03f8680eff570959","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c611b9e55174e439dcd85a72969b43a95f3827a4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/efaf61052b8ff9ee8968912fbaf02c2847c78ede","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"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":0.08673,"ingestedAt":"2026-10-15T03:30:12.815Z","slug":"CVE-2025-38105","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Kill timer properly at removal\n\nThe USB-audio MIDI code initializes the timer, but in a rare case, the\ndriver might be freed without the disconnect call.  This leaves the\ntimer in an active state while the assigned object is released via\nsnd_usbmidi_free(), which ends up with a kernel warning when the debug\nconfiguration is enabled, as spotted by fuzzer.\n\nFor avoiding the problem, put timer_shutdown_sync() at\nsnd_usbmidi_free(), so that the timer can be killed properly.\nWhile we're at it, replace the existing timer_delete_sync() at the\ndisconnect callback with timer_shutdown_sync(), too.\n\n## Affected\n\n- `linux_kernel >= 2.6.14, < 6.6.111`\n- `linux_kernel >= 6.7, < 6.12.52`\n- `linux_kernel >= 6.13, < 6.15.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.15.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}