7.1

CVE-2025-38482

comedi: das6402: Fix bit shift out of bounds

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.15 < 5.4.297
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.241
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.190
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.147
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.100
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.40
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.8
Linux ≫ Linux Kernel Version6.16 Updaterc1
Linux ≫ Linux Kernel Version6.16 Updaterc2
Linux ≫ Linux Kernel Version6.16 Updaterc3
Linux ≫ Linux Kernel Version6.16 Updaterc4
Linux ≫ Linux Kernel Version6.16 Updaterc5
Linux ≫ Linux Kernel Version6.16 Updaterc6
Debian ≫ Debian Linux Version11.0
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.072
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.