VYPR
High severity7.8NVD Advisory· Published Mar 25, 2024· Updated Aug 4, 2026

CVE-2021-47159

CVE-2021-47159

Description

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

28

Patches

Vulnerability mechanics

References

5

News mentions

0

No linked articles in our index yet.