CVE-2025-38529
comedi: aio_iiro_16: Fix bit shift out of bounds
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: comedi: aio_iiro_16: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: 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. Valid `it->options[1]` values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 16, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
ad7a370c8be47247f68f7187cc82f4f25a347116 < a88692245c315bf8e225f205297a6f4b13d6856a ad7a370c8be47247f68f7187cc82f4f25a347116 < 5ac7c60439236fb691b8c7987390e2327bbf18fa ad7a370c8be47247f68f7187cc82f4f25a347116 < c593215385f0c0163015cca4512ed3ff42875d19 ad7a370c8be47247f68f7187cc82f4f25a347116 < ff30dd3f15f443d2a0085b12ec2cc95d44f35fa7 ad7a370c8be47247f68f7187cc82f4f25a347116 < 955e8835855fed8e87f7d8c8075564a1746c1b4c ad7a370c8be47247f68f7187cc82f4f25a347116 < e0f3c0867d7d231c70984f05c97752caacd0daba ad7a370c8be47247f68f7187cc82f4f25a347116 < 43ddd82e6a91913cea1c078e782afd8de60c3a53 ad7a370c8be47247f68f7187cc82f4f25a347116 < 66acb1586737a22dd7b78abc63213b1bcaa100e4
Linux / Linux
4.0
References
git.kernel.org: https://git.kernel.org/stable/c/a88692245c315bf8e225f205297a6f4b13d6856a git.kernel.org: https://git.kernel.org/stable/c/5ac7c60439236fb691b8c7987390e2327bbf18fa git.kernel.org: https://git.kernel.org/stable/c/c593215385f0c0163015cca4512ed3ff42875d19 git.kernel.org: https://git.kernel.org/stable/c/ff30dd3f15f443d2a0085b12ec2cc95d44f35fa7 git.kernel.org: https://git.kernel.org/stable/c/955e8835855fed8e87f7d8c8075564a1746c1b4c git.kernel.org: https://git.kernel.org/stable/c/e0f3c0867d7d231c70984f05c97752caacd0daba git.kernel.org: https://git.kernel.org/stable/c/43ddd82e6a91913cea1c078e782afd8de60c3a53 git.kernel.org: https://git.kernel.org/stable/c/66acb1586737a22dd7b78abc63213b1bcaa100e4 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html