PT-2018-2842 · Linux · Linux Kernel
Published
2018-12-03
·
Updated
2018-12-03
CVSS v2.0
4.9
Medium
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a null pointer dereference in the snd korg1212 interrupt handler of the sound/pci/korg1212/snd-korg1212.ko module. This can be exploited to cause a denial of service when a Korg 1212 device is connected, as it is represented as a PCI device. The problem arises from the snd korg1212 interrupt handler attempting to access the
korg1212->sharedBufferPtr pointer, which is null. The registration of the snd korg1212 interrupt handler occurs in the snd korg1212 create function, called from the snd korg1212 probe handler, while the initialization of korg1212->sharedBufferPtr with memory allocated by snd dma alloc pages happens after the handler registration in the snd korg1212 create function.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel