{"id":"CVE-2025-38530","summary":"comedi: pcl812: Fix bit shift out of bounds","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: pcl812: Fix bit shift out of bounds\n\nWhen checking for a supported IRQ number, the following test is used:\n\n\tif ((1 \u003c\u003c it-\u003eoptions[1]) & board-\u003eirq_bits) {\n\nHowever, `it-\u003eoptions[i]` is an unchecked `int` value from userspace, so\nthe shift amount could be negative or out of bounds.  Fix the test by\nrequiring `it-\u003eoptions[1]` to be within bounds before proceeding with\nthe original test.  Valid `it-\u003eoptions[1]` values that select the IRQ\nwill be in the range [1,15]. The value 0 explicitly disables the use of\ninterrupts.","modified":"2026-03-20T12:42:54.468339Z","published":"2025-08-16T11:12:23.368Z","related":["SUSE-SU-2025:03272-1","SUSE-SU-2025:03290-1","SUSE-SU-2025:03301-1","SUSE-SU-2025:03382-1","SUSE-SU-2025:03602-1","SUSE-SU-2025:03633-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20653-1","SUSE-SU-2025:20669-1","SUSE-SU-2025:20739-1","SUSE-SU-2025:20756-1","SUSE-SU-2026:20555-1","SUSE-SU-2026:20599-1","SUSE-SU-2026:20615-1","openSUSE-SU-2026:20287-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38530.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0489c30d080f07cc7f09d04de723d8c2ccdb61ef"},{"type":"WEB","url":"https://git.kernel.org/stable/c/16c173abee315953fd17a279352fec4a1faee862"},{"type":"WEB","url":"https://git.kernel.org/stable/c/29ef03e5b84431171d6b77b822985b54bc44b793"},{"type":"WEB","url":"https://git.kernel.org/stable/c/374d9b3eb4b08407997ef1fce96119d31e0c0bc4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5bfa301e1e59a9b1a7b62a800b54852337c97416"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7e470d8efd10725b189ca8951973a8425932398a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a27e27eee313fe1c450b6af1e80e64412546cab4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b14b076ce593f72585412fc7fd3747e03a5e3632"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38530.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38530"},{"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":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432"},{"fixed":"374d9b3eb4b08407997ef1fce96119d31e0c0bc4"},{"fixed":"0489c30d080f07cc7f09d04de723d8c2ccdb61ef"},{"fixed":"29ef03e5b84431171d6b77b822985b54bc44b793"},{"fixed":"5bfa301e1e59a9b1a7b62a800b54852337c97416"},{"fixed":"7e470d8efd10725b189ca8951973a8425932398a"},{"fixed":"a27e27eee313fe1c450b6af1e80e64412546cab4"},{"fixed":"16c173abee315953fd17a279352fec4a1faee862"},{"fixed":"b14b076ce593f72585412fc7fd3747e03a5e3632"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38530.json"}}],"schema_version":"1.7.5"}