{"id":"CVE-2025-38483","state":"PUBLISHED","title":"comedi: das16m1: Fix bit shift out of bounds","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: das16m1: Fix bit shift out of bounds\n\nWhen checking for a supported IRQ number, the following test is used:\n\n\t/* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */\n\tif ((1 << it->options[1]) & 0xdcfc) {\n\nHowever, `it->options[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->options[1]` to be within bounds before proceeding with\nthe original test.","publishedAt":"2025-07-28T11:21:47.895Z","updatedAt":"2026-05-11T21:28:53.213Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"539bdff832adac9ea653859fa0b6bc62e743329c","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"d1291c69f46d6572b2cf75960dd8975d7ab2176b","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"b3c95fa508e5dc3da60520eea92a5241095ceef1","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"65c03e6fc524eb2868abedffd8a4613d78abc288","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"adb7df8a8f9d788423e161b779764527dd3ec2d0","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"076b13ee60eb01ed0d140ef261f95534562a3077","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"f211572818ed5bec2b3f5d4e0719ef8699b3c269","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"ed93c6f68a3be06e4e0c331c6e751f462dee3932","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/comedi/drivers/das16m1.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.14","versionType":"semver"},{"version":"5.4.297","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.147","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.100","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.40","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.8","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/comedi/drivers/das16m1.c"]}],"references":["https://git.kernel.org/stable/c/539bdff832adac9ea653859fa0b6bc62e743329c","https://git.kernel.org/stable/c/d1291c69f46d6572b2cf75960dd8975d7ab2176b","https://git.kernel.org/stable/c/b3c95fa508e5dc3da60520eea92a5241095ceef1","https://git.kernel.org/stable/c/65c03e6fc524eb2868abedffd8a4613d78abc288","https://git.kernel.org/stable/c/adb7df8a8f9d788423e161b779764527dd3ec2d0","https://git.kernel.org/stable/c/076b13ee60eb01ed0d140ef261f95534562a3077","https://git.kernel.org/stable/c/f211572818ed5bec2b3f5d4e0719ef8699b3c269","https://git.kernel.org/stable/c/ed93c6f68a3be06e4e0c331c6e751f462dee3932","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38483.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38483","state":"PUBLISHED","datePublished":"2025-07-28T11:21:47.895Z","dateUpdated":"2026-05-11T21:28:53.213Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.021Z"},"containers":{"cna":{"title":"comedi: das16m1: Fix bit shift out of bounds","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: das16m1: Fix bit shift out of bounds\n\nWhen checking for a supported IRQ number, the following test is used:\n\n\t/* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */\n\tif ((1 << it->options[1]) & 0xdcfc) {\n\nHowever, `it->options[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->options[1]` to be within bounds before proceeding with\nthe original test."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"539bdff832adac9ea653859fa0b6bc62e743329c","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"d1291c69f46d6572b2cf75960dd8975d7ab2176b","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"b3c95fa508e5dc3da60520eea92a5241095ceef1","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"65c03e6fc524eb2868abedffd8a4613d78abc288","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"adb7df8a8f9d788423e161b779764527dd3ec2d0","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"076b13ee60eb01ed0d140ef261f95534562a3077","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"f211572818ed5bec2b3f5d4e0719ef8699b3c269","versionType":"git"},{"version":"729988507680b2ce934bce61d9ce0ea7b235914c","status":"affected","lessThan":"ed93c6f68a3be06e4e0c331c6e751f462dee3932","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/comedi/drivers/das16m1.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.14","versionType":"semver"},{"version":"5.4.297","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.147","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.100","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.40","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.8","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/comedi/drivers/das16m1.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/539bdff832adac9ea653859fa0b6bc62e743329c"},{"url":"https://git.kernel.org/stable/c/d1291c69f46d6572b2cf75960dd8975d7ab2176b"},{"url":"https://git.kernel.org/stable/c/b3c95fa508e5dc3da60520eea92a5241095ceef1"},{"url":"https://git.kernel.org/stable/c/65c03e6fc524eb2868abedffd8a4613d78abc288"},{"url":"https://git.kernel.org/stable/c/adb7df8a8f9d788423e161b779764527dd3ec2d0"},{"url":"https://git.kernel.org/stable/c/076b13ee60eb01ed0d140ef261f95534562a3077"},{"url":"https://git.kernel.org/stable/c/f211572818ed5bec2b3f5d4e0719ef8699b3c269"},{"url":"https://git.kernel.org/stable/c/ed93c6f68a3be06e4e0c331c6e751f462dee3932"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:28:53.213Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.4.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.10.241"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.15.190"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.1.147"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.6.100"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.12.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.15.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.16"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T17:38:54.170Z"}}]}}}