Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ad7a370c8be47247f68f7187cc82f4f25a347116 before a88692245c315bf8e225f205297a6f4b13d6856a; affected ad7a370c8be47247f68f7187cc82f4f25a347116 before 5ac7c60439236fb691b8c7987390e2327bbf18fa; affected ad7a370c8be47247f68f7187cc82f4f25a347116 before c593215385f0c0163015cca4512ed3ff42875d19; affected ad7a370c8be47247f68f7187cc82f4f25a347116 before ff30dd3f15f443d2a0085b12ec2cc95d44f35fa7; affected ad7a370c8be47247f68f7187cc82f4f25a347116 before 955e8835855fed8e87f7d8c8075564a1746c1b4c; affected ad7a370c8be47247f68f7187cc82f4f25a347116 before e0f3c0867d7d231c70984f05c97752caacd0daba; affected ad7a370c8be47247f68f7187cc82f4f25a347116 before 43ddd82e6a91913cea1c078e782afd8de60c3a53; affected ad7a370c8be47247f68f7187cc82f4f25a347116 before 66acb1586737a22dd7b78abc63213b1bcaa100e4 |
| Linux / Linux | affected 4.0; unaffected 0 before 4.0; unaffected 5.4.297 through 5.4.*; unaffected 5.10.241 through 5.10.*; unaffected 5.15.190 through 5.15.*; unaffected 6.1.147 through 6.1.*; unaffected 6.6.100 through 6.6.*; unaffected 6.12.40 through 6.12.*; unaffected 6.15.8 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a88692245c315bf8e225f205297a6f4b13d6856a
- https://git.kernel.org/stable/c/5ac7c60439236fb691b8c7987390e2327bbf18fa
- https://git.kernel.org/stable/c/c593215385f0c0163015cca4512ed3ff42875d19
- https://git.kernel.org/stable/c/ff30dd3f15f443d2a0085b12ec2cc95d44f35fa7
- https://git.kernel.org/stable/c/955e8835855fed8e87f7d8c8075564a1746c1b4c
- https://git.kernel.org/stable/c/e0f3c0867d7d231c70984f05c97752caacd0daba
- https://git.kernel.org/stable/c/43ddd82e6a91913cea1c078e782afd8de60c3a53
- https://git.kernel.org/stable/c/66acb1586737a22dd7b78abc63213b1bcaa100e4
ADP enrichment
No English description supplied.