UnratedFix available
comedi: das16m1: Fix bit shift out of bounds
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: comedi: das16m1: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */ if ((1 << it->options[1]) & 0xdcfc) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.241, 5.15.190, 5.4.297, 6.1.147, 6.12.40, 6.15.8, 6.6.100
- CVEs
- CVE-2025-38483
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 00:15 UTC · Revision 1
Source evidence
comedi: das16m1: Fix bit shift out of bounds
core-osv · Original sourcePublished 28 Jul 2025, 11:21 UTC
In the Linux kernel, the following vulnerability has been resolved: comedi: das16m1: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */ if ((1 << it->options[1]) & 0xdcfc) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test.
osv:CVE-2025-38483
Kernel
Fixed versions: 5.4.297, 5.10.241, 5.15.190, 6.1.147, 6.6.100, 6.12.40, 6.15.8
Complete source record
{
"id": "5814229a9fc58c49606124c3e7ea90606e1b6457481506525af362fc46f4bcea",
"url": "https://osv.dev/vulnerability/CVE-2025-38483",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "comedi: das16m1: Fix bit shift out of bounds",
"summary": "In the Linux kernel, the following vulnerability has been resolved: comedi: das16m1: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */ if ((1 << it->options[1]) & 0xdcfc) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test.",
"evidence": "osv:CVE-2025-38483",
"products": [
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"name": {
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{
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{
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{
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"severity": "unknown",
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"aliases": [
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{
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"package": {
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"database_specific": {
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"modified": "2026-10-28T02:30:32.702792336Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/076b13ee60eb01ed0d140ef261f95534562a3077",
"https://git.kernel.org/stable/c/539bdff832adac9ea653859fa0b6bc62e743329c",
"https://git.kernel.org/stable/c/65c03e6fc524eb2868abedffd8a4613d78abc288",
"https://git.kernel.org/stable/c/adb7df8a8f9d788423e161b779764527dd3ec2d0",
"https://git.kernel.org/stable/c/b3c95fa508e5dc3da60520eea92a5241095ceef1",
"https://git.kernel.org/stable/c/d1291c69f46d6572b2cf75960dd8975d7ab2176b",
"https://git.kernel.org/stable/c/ed93c6f68a3be06e4e0c331c6e751f462dee3932",
"https://git.kernel.org/stable/c/f211572818ed5bec2b3f5d4e0719ef8699b3c269",
"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38483.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-38483",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38483.json"
}
},
"related_cves": [
{
"value": "CVE-2025-38483",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 499321,
"published_at": "2025-07-28T11:21:47.895+00:00"
}