Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: comedi: das6402: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */ if ((1 << it->options[1]) & 0x8cec) { 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 79e5e6addbb18bf56075f0ff552094a28636dd03 before a15e9c175f783298c4ee48146be6841335400406; affected 79e5e6addbb18bf56075f0ff552094a28636dd03 before de8da1063cce9234d55c8270d9bdf4cf84411c80; affected 79e5e6addbb18bf56075f0ff552094a28636dd03 before 73f34d609397805c20d6b2ef5c07a4cbf7c4d63a; affected 79e5e6addbb18bf56075f0ff552094a28636dd03 before a18a42e77545afcacd6a2b8d9fc16191b87454df; affected 79e5e6addbb18bf56075f0ff552094a28636dd03 before 8a3637027ceeba4ca5e500b23cb7d24c25592513; affected 79e5e6addbb18bf56075f0ff552094a28636dd03 before 3eab654f5d199ecd45403c6588cda63e491fcfca; affected 79e5e6addbb18bf56075f0ff552094a28636dd03 before 4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4; affected 79e5e6addbb18bf56075f0ff552094a28636dd03 before 70f2b28b5243df557f51c054c20058ae207baaac |
| Linux / Linux | affected 3.15; unaffected 0 before 3.15; 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/a15e9c175f783298c4ee48146be6841335400406
- https://git.kernel.org/stable/c/de8da1063cce9234d55c8270d9bdf4cf84411c80
- https://git.kernel.org/stable/c/73f34d609397805c20d6b2ef5c07a4cbf7c4d63a
- https://git.kernel.org/stable/c/a18a42e77545afcacd6a2b8d9fc16191b87454df
- https://git.kernel.org/stable/c/8a3637027ceeba4ca5e500b23cb7d24c25592513
- https://git.kernel.org/stable/c/3eab654f5d199ecd45403c6588cda63e491fcfca
- https://git.kernel.org/stable/c/4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4
- https://git.kernel.org/stable/c/70f2b28b5243df557f51c054c20058ae207baaac
ADP enrichment
No English description supplied.