{"id":"CVE-2026-46146","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()\n\nThe convert_chmap_v3() has a loop with its increment size of\ncs_desc->wLength, but we forgot to val…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()\n\nThe convert_chmap_v3() has a loop with its increment size of\ncs_desc->wLength, but we forgot to val…","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-835"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.4.297, < 5.5","linux_kernel >= 5.10.241, < 5.10.258","linux_kernel >= 5.15.190, < 5.15.209","linux_kernel >= 6.1.149, < 6.1.175","linux_kernel >= 6.6.103, < 6.6.140","linux_kernel >= 6.12.43, < 6.12.88","linux_kernel >= 6.15.11, < 6.16","linux_kernel >= 6.16.2, < 6.17","linux_kernel >= 6.17.1, < 6.18.30","linux_kernel >= 6.19, < 7.0.7","linux_kernel = 6.17","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.7"],"published":"2026-05-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:19:46.427","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46146","references":[{"url":"https://git.kernel.org/stable/c/076d5d13eb9c1ad259a7f246149f6676c62285f9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/24a40df79307ca7ca0eec0889361cf6ac146d72a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/316aa0b1e3c5600eae5ab876394c1ac70e6db581","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3","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":0.00162,"epssPercentile":0.05031,"ingestedAt":"2026-10-15T03:30:12.890Z","slug":"CVE-2026-46146","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()\n\nThe convert_chmap_v3() has a loop with its increment size of\ncs_desc->wLength, but we forgot to validate cs_desc->wLength itself,\nwhich may lead to potential endless loop by a malformed descriptor.\n\nAdd a proper size check to abort the loop for plugging the hole.\n\n## Affected\n\n- `linux_kernel >= 5.4.297, < 5.5`\n- `linux_kernel >= 5.10.241, < 5.10.258`\n- `linux_kernel >= 5.15.190, < 5.15.209`\n- `linux_kernel >= 6.1.149, < 6.1.175`\n- `linux_kernel >= 6.6.103, < 6.6.140`\n- `linux_kernel >= 6.12.43, < 6.12.88`\n- `linux_kernel >= 6.15.11, < 6.16`\n- `linux_kernel >= 6.16.2, < 6.17`\n- `linux_kernel >= 6.17.1, < 6.18.30`\n- `linux_kernel >= 6.19, < 7.0.7`\n- `linux_kernel = 6.17`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.7`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}