CVE-2016-8645

kernel: a BUG() statement can be hit in net/ipv4/tcp_input.c

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Severity

Moderate

Red Hat Product Security

6.2

CVSS 3.0

Review impact separately from score.

Published · November 10, 2016

Updated · June 28, 2026

Description

It was discovered that the Linux kernel since 3.6-rc1 with 'net.ipv4.tcp_fastopen' set to 1 can hit BUG() statement in tcp_collapse() function after making a number of certain syscalls leading to a possible system crash.

Statement

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code which can trigger the flaw is not present in the products listed.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.

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 3.0 · 6.2
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 · 4.9
AV:L/AC:L/Au:N/C:N/I:N/A:C

CWE-617 · Reachable Assertion