CVE-2018-9415 — kernel: race condition in the ARM Advanced Microcontroller Bus Architecture (AMBA) driver

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HIGH

kernel: race condition in the ARM Advanced Microcontroller Bus Architecture (AMBA) driver

Published Nov 6, 2018

7.8

HIGH

CVSS 3.0

EPSS 0.25%

Description

In driver_override_store and driver_override_show of bus.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-69129004 References: Upstream kernel.

Affected products

Vendor Google Inc. Product Android Default
n/a
- Version
  Android kernel
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Google Inc.

Android

n/a

Version	Status	Constraints
Android kernel	affected	-

Red Hat Enterprise Linux 5

kernel

Not affected
Red Hat Enterprise Linux 6

kernel

Not affected
Red Hat Enterprise Linux 7

kernel

Not affected
Red Hat Enterprise Linux 7

kernel-alt

Affected
Red Hat Enterprise Linux 7

kernel-rt

Not affected
Red Hat Enterprise Linux 8

kernel

Not affected
Red Hat Enterprise MRG 2

kernel-rt

Not affected

Product	Package	State	Advisory
Red Hat Enterprise Linux 5	kernel	Not affected	n/a
Red Hat Enterprise Linux 6	kernel	Not affected	n/a
Red Hat Enterprise Linux 7	kernel	Not affected	n/a
Red Hat Enterprise Linux 7	kernel-alt	Affected	n/a
Red Hat Enterprise Linux 7	kernel-rt	Not affected	n/a
Red Hat Enterprise Linux 8	kernel	Not affected	n/a
Red Hat Enterprise MRG 2	kernel-rt	Not affected	n/a

Remediation

No remediation recorded yet.

Metrics

0.25% 0.00254

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00254

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (8 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.25% (0.00254)	15.38th	v5 (v2026.06.15)
Sep 20, 2026	0.25% (0.00254)	17.30th	v5 (v2026.06.15)
Jul 20, 2024	0.04% (0.00042)	5.06th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	1.36% (0.01365)	71.56th	v2 (v2022.01.01)
Feb 4, 2022	1.36% (0.01365)	45.07th	v2 (v2022.01.01)
Feb 3, 2022	0.40% (0.00403)	3.45th	v5 (v2026.06.15)
Apr 14, 2021	0.40% (0.00403)	0.00th	v1

Weaknesses (2)

CWE-400

Uncontrolled Resource Consumption

CWE-415

References (8)

https://access.redhat.com/security/cve/CVE-2018-9415
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1629030
Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2018-9415
https://source.android.com/security/bulletin/pixel/2018-07-01
x_refsource_CONFIRMPatchVendor Advisory
https://usn.ubuntu.com/3752-1/
vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3752-2/
vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3752-3/
vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cve.org/CVERecord?id=CVE-2018-9415

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2018-9415		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1629030		Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2018-9415
https://source.android.com/security/bulletin/pixel/2018-07-01		x_refsource_CONFIRMPatchVendor Advisory
https://usn.ubuntu.com/3752-1/		vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3752-2/		vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3752-3/		vendor-advisoryx_refsource_UBUNTUThird Party Advisory
https://www.cve.org/CVERecord?id=CVE-2018-9415