CVE Watch4 ago 2026

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

CVSS

7.8

Alto

EPSS

0.2%

p15

KEV

—

Exploit Today

0-100

Publicado: 25 mar 2024 · Última mod.: 4 ago 2026 · CWE-835

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-07-312026-08-27

Descripción técnica

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.

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