{"id":"CVE-2025-38530","state":"PUBLISHED","title":"comedi: pcl812: Fix bit shift out of bounds","description":"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 << it->options[1]) & board->irq_bits) {\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.  Valid `it->options[1]` values that select the IRQ\nwill be in the range [1,15]. The value 0 explicitly disables the use of\ninterrupts.","publishedAt":"2025-08-16T11:12:23.368Z","updatedAt":"2026-05-11T21:29:48.482Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"374d9b3eb4b08407997ef1fce96119d31e0c0bc4","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"0489c30d080f07cc7f09d04de723d8c2ccdb61ef","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"29ef03e5b84431171d6b77b822985b54bc44b793","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"5bfa301e1e59a9b1a7b62a800b54852337c97416","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"7e470d8efd10725b189ca8951973a8425932398a","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"a27e27eee313fe1c450b6af1e80e64412546cab4","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"16c173abee315953fd17a279352fec4a1faee862","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"b14b076ce593f72585412fc7fd3747e03a5e3632","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/comedi/drivers/pcl812.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","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/pcl812.c"]}],"references":["https://git.kernel.org/stable/c/374d9b3eb4b08407997ef1fce96119d31e0c0bc4","https://git.kernel.org/stable/c/0489c30d080f07cc7f09d04de723d8c2ccdb61ef","https://git.kernel.org/stable/c/29ef03e5b84431171d6b77b822985b54bc44b793","https://git.kernel.org/stable/c/5bfa301e1e59a9b1a7b62a800b54852337c97416","https://git.kernel.org/stable/c/7e470d8efd10725b189ca8951973a8425932398a","https://git.kernel.org/stable/c/a27e27eee313fe1c450b6af1e80e64412546cab4","https://git.kernel.org/stable/c/16c173abee315953fd17a279352fec4a1faee862","https://git.kernel.org/stable/c/b14b076ce593f72585412fc7fd3747e03a5e3632","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-2025-38530.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38530","state":"PUBLISHED","datePublished":"2025-08-16T11:12:23.368Z","dateUpdated":"2026-05-11T21:29:48.482Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.023Z"},"containers":{"cna":{"title":"comedi: pcl812: Fix bit shift out of bounds","descriptions":[{"lang":"en","value":"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 << it->options[1]) & board->irq_bits) {\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.  Valid `it->options[1]` values that select the IRQ\nwill be in the range [1,15]. The value 0 explicitly disables the use of\ninterrupts."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"374d9b3eb4b08407997ef1fce96119d31e0c0bc4","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"0489c30d080f07cc7f09d04de723d8c2ccdb61ef","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"29ef03e5b84431171d6b77b822985b54bc44b793","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"5bfa301e1e59a9b1a7b62a800b54852337c97416","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"7e470d8efd10725b189ca8951973a8425932398a","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"a27e27eee313fe1c450b6af1e80e64412546cab4","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"16c173abee315953fd17a279352fec4a1faee862","versionType":"git"},{"version":"fcdb427bc7cf5e9e5d7280cf09c08dec49b49432","status":"affected","lessThan":"b14b076ce593f72585412fc7fd3747e03a5e3632","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/comedi/drivers/pcl812.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","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/pcl812.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/374d9b3eb4b08407997ef1fce96119d31e0c0bc4"},{"url":"https://git.kernel.org/stable/c/0489c30d080f07cc7f09d04de723d8c2ccdb61ef"},{"url":"https://git.kernel.org/stable/c/29ef03e5b84431171d6b77b822985b54bc44b793"},{"url":"https://git.kernel.org/stable/c/5bfa301e1e59a9b1a7b62a800b54852337c97416"},{"url":"https://git.kernel.org/stable/c/7e470d8efd10725b189ca8951973a8425932398a"},{"url":"https://git.kernel.org/stable/c/a27e27eee313fe1c450b6af1e80e64412546cab4"},{"url":"https://git.kernel.org/stable/c/16c173abee315953fd17a279352fec4a1faee862"},{"url":"https://git.kernel.org/stable/c/b14b076ce593f72585412fc7fd3747e03a5e3632"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:29:48.482Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.241"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.190"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.1.147"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.6.100"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.12.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.15.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","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":"2025-11-03T17:39:28.671Z"}}]}}}