CVE-2026-98798
kernel: net: bcmgenet: fix NULL dereference in set_coalesce before first open
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 24, 2026
Description
A flaw was found in the Linux kernel's Broadcom GENET network driver. A privileged local user could trigger a Denial of Service (DoS) by configuring receive coalescing settings on a network interface that has not yet been opened. This flaw leads to a null pointer dereference that can crash the kernel or lock networking operations, requiring a system reboot to restore service.
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 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference