NetSight
IP …
high7.8

CVE-2021-47159

In the Linux kernel, the following vulnerability has been resolved: net: dsa: fix a crash if ->get_sset_count() fails If ds->ops->get_sset_count() fails then i…

Impact

In the Linux kernel, the following vulnerability has been resolved: net: dsa: fix a crash if ->get_sset_count() fails If ds->ops->get_sset_count() fails then it "count" is a negative error code such as -EOPNOTSUPP. Because "i" is an unsigned int, the negative error code is type promoted to a very high value and the loop will corrupt memory until the system crashes. Fix this by checking for error codes and changing the type of "i" to just int.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 4.7 before 4.19.193
from 4.20 before 5.4.124
from 5.5 before 5.10.42
from 5.11 before 5.12.9
Version 5.13

Weakness classification

CWE-835

References