CVE-2026-52985
kernel: netdevsim: zero initialize struct iphdr in dummy sk_buff
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 24, 2026
Updated · July 15, 2026
Description
A flaw was found in the Linux kernel's netdevsim module. An uninitialized memory vulnerability exists in the handling of struct iphdr within a dummy sk_buff due to the use of skb_put instead of skb_put_zero. This could lead to unpredictable system behavior, including crashes (Denial of Service), or potentially the disclosure of sensitive information.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-824 · Access of Uninitialized Pointer