CVE-2022-49856
kernel: net: tun: call napi_schedule_prep() to ensure we own a napi
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 1, 2025
Updated · June 30, 2026
Description
[REJECTED CVE] In the Linux kernel, the following vulnerability has been resolved: net: tun: call napi_schedule_prep() to ensure we own a napi
Statement
This CVE has been rejected by the Linux kernel community. Refer to the announcement: https://lore.kernel.org/linux-cve-announce/2025050832-REJECTED-cf29@gregkh/
The issue in tun driver was evaluated by the kernel community and explicitly rejected as a CVE candidate, as it does not cross any security boundaries. It results only in a WARN/OOPS condition with no privilege escalation, memory corruption, or information leak, and requires CAP_NET_ADMIN to trigger.
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 · 1.9CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
CWE not specified