{"id":"CVE-2026-46146","summary":"ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()","details":"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-\u003ewLength, but we forgot to validate cs_desc-\u003ewLength 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.","modified":"2026-10-28T02:31:08.437072598Z","published":"2026-05-28T09:36:02.794Z","related":["SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:23193-1","SUSE-SU-2026:23194-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","SUSE-SU-2026:23241-1","SUSE-SU-2026:23244-1","SUSE-SU-2026:3130-1","SUSE-SU-2026:3166-1","SUSE-SU-2026:3594-1","openSUSE-SU-2026:10954-1","openSUSE-SU-2026:21555-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46146.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html"},{"type":"WEB","url":"https://git.kernel.org/stable/c/076d5d13eb9c1ad259a7f246149f6676c62285f9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/24a40df79307ca7ca0eec0889361cf6ac146d72a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/316aa0b1e3c5600eae5ab876394c1ac70e6db581"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46146.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46146"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"786571b10b1ae6d90e1242848ce78ee7e1d493c4"},{"fixed":"076d5d13eb9c1ad259a7f246149f6676c62285f9"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"275e37532e8ebe25e8a4069b2d9f955bfd202a46"},{"fixed":"316aa0b1e3c5600eae5ab876394c1ac70e6db581"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"47ab3d820cb0a502bd0074f83bb3cf7ab5d79902"},{"fixed":"24a40df79307ca7ca0eec0889361cf6ac146d72a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1034719fdefd26caeec0a44a868bb5a412c2c1a5"},{"fixed":"e0e3dcf48189603f3865f1a0b799b3b42baae96d"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ae17b3b5e753efc239421d186cd1ff06e5ac296e"},{"fixed":"4e0ee232ebe3df04874125d7c7f3e6c25ea5483d"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ecfd41166b72b67d3bdeb88d224ff445f6163869"},{"fixed":"be09b47ed8677d76962e3240c145502e2ad9f3c8"},{"fixed":"fa5b19ce69067874b1413f3c2027563bae8c2cb3"},{"fixed":"6e7247d8f5fefeceb0bb9cc80a5388a636b219cd"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.10.241"},{"fixed":"5.10.258"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.15.190"},{"fixed":"5.15.209"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.1.149"},{"fixed":"6.1.175"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.6.103"},{"fixed":"6.6.140"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.43"},{"fixed":"6.12.88"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.4.297"},{"fixed":"5.5"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.15.11"},{"fixed":"6.16"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.16.2"},{"fixed":"6.17"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"799c06ad4c9c790c265e8b6b94947213f1fb389c"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"dfdcbcde5c20df878178245d4449feada7d5b201"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7ef3fd250f84494fb2f7871f357808edaa1fc6ce"}]}],"versions":["v5.10.257","v5.10.256","v5.10.255","v5.10.254","v5.10.253","v5.10.252","v5.10.251","v5.10.250","v5.10.249","v5.10.248","v5.10.247","v5.10.246","v5.10.245","v5.10.244","v5.10.243","v5.10.242","v5.10.241","v5.15.208","v5.15.207","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