Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 729988507680b2ce934bce61d9ce0ea7b235914c before 539bdff832adac9ea653859fa0b6bc62e743329c; affected 729988507680b2ce934bce61d9ce0ea7b235914c before d1291c69f46d6572b2cf75960dd8975d7ab2176b; affected 729988507680b2ce934bce61d9ce0ea7b235914c before b3c95fa508e5dc3da60520eea92a5241095ceef1; affected 729988507680b2ce934bce61d9ce0ea7b235914c before 65c03e6fc524eb2868abedffd8a4613d78abc288; affected 729988507680b2ce934bce61d9ce0ea7b235914c before adb7df8a8f9d788423e161b779764527dd3ec2d0; affected 729988507680b2ce934bce61d9ce0ea7b235914c before 076b13ee60eb01ed0d140ef261f95534562a3077; affected 729988507680b2ce934bce61d9ce0ea7b235914c before f211572818ed5bec2b3f5d4e0719ef8699b3c269; affected 729988507680b2ce934bce61d9ce0ea7b235914c before ed93c6f68a3be06e4e0c331c6e751f462dee3932 |
| Linux / Linux | affected 3.14; unaffected 0 before 3.14; 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/539bdff832adac9ea653859fa0b6bc62e743329c
- https://git.kernel.org/stable/c/d1291c69f46d6572b2cf75960dd8975d7ab2176b
- https://git.kernel.org/stable/c/b3c95fa508e5dc3da60520eea92a5241095ceef1
- https://git.kernel.org/stable/c/65c03e6fc524eb2868abedffd8a4613d78abc288
- https://git.kernel.org/stable/c/adb7df8a8f9d788423e161b779764527dd3ec2d0
- https://git.kernel.org/stable/c/076b13ee60eb01ed0d140ef261f95534562a3077
- https://git.kernel.org/stable/c/f211572818ed5bec2b3f5d4e0719ef8699b3c269
- https://git.kernel.org/stable/c/ed93c6f68a3be06e4e0c331c6e751f462dee3932
ADP enrichment
No English description supplied.