CVE-2026-98804
kernel: net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk()
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 networking subsystem. When page pool statistics are enabled, a race condition in the bulk recycling mechanism can allow a memory pool to be freed before statistical updates finish processing. An attacker capable of triggering concurrent network buffer teardown could exploit this use-after-free flaw to cause a Denial of Service (DoS) via a system crash or potentially corrupt system memory.
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 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference