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.
Metrics
Affected Vendors & Products
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History
Tue, 29 Jul 2025 12:30:00 +0000
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threat_severity
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cvssV3_1
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Tue, 29 Jul 2025 08:00:00 +0000
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Linux
Linux linux Kernel |
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Vendors & Products |
Linux
Linux linux Kernel |
Mon, 28 Jul 2025 11:30:00 +0000
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Description | 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. | |
Title | comedi: das16m1: Fix bit shift out of bounds | |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-07-28T11:21:47.895Z
Updated: 2025-07-28T11:21:47.895Z
Reserved: 2025-04-16T04:51:24.021Z
Link: CVE-2025-38483

No data.

Status : Awaiting Analysis
Published: 2025-07-28T12:15:30.253
Modified: 2025-07-29T14:14:29.590
Link: CVE-2025-38483
