CVE-2017-6899: The msm_bus_dbg_update_request_write function in drivers/platform/msm/msm_bus/msm_bus_dbg.c in android_kernel_

Q: How do I fix CVE-2017-6899?

lineageos: upgrade to newer than 2017-06-16. Exact commands for each OS are on this page.

Q: Is CVE-2017-6899 being exploited?

CVE-2017-6899 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-6899 affect?

CVE-2017-6899 affects lineageos. Severity is medium (CVSS 6.2). The msm_bus_dbg_update_request_write function in drivers/platform/msm/msm_bus/msm_bus_dbg.c in android_kernel_huawei_msm8916 through 2017-06-16 in LineageOS, and possibly other kernels for MSM devices, allows attackers to cause a denial of

Q: How urgent is CVE-2017-6899?

Priority 29/100. No elevated risk signals yet.

Routine

MEDIUM 6.2UPGRADE

CVE-2017-6899 is a medium-severity flaw (CVSS 6.2) affecting lineageos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The msm_bus_dbg_update_request_write function in drivers/platform/msm/msm_bus/msm_bus_dbg.c in android_kernel_huawei_msm8916 through 2017-06-16 in LineageOS, and possibly other kernels for MSM devices, allows attackers to cause a denial of service (NULL pointer dereference and device crash) via a crafted /sys/kernel/debug/msm-bus-dbg/client-data/update-request write request.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.2 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-476
Published	2017-06-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: lineageos

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-06-16 17:29 UTCPublished CVE record published
2026-06-17 01:23 UTCUpdated Record last modified

lineageos lineageos UPGRADE

Affected: <= 2017-06-16

Fixed in: newer than 2017-06-16

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-6899?

lineageos: upgrade to newer than 2017-06-16. Exact commands for each OS are on this page.

Is CVE-2017-6899 being exploited?

CVE-2017-6899 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-6899 affect?

CVE-2017-6899 affects lineageos. Severity is medium (CVSS 6.2). The msm_bus_dbg_update_request_write function in drivers/platform/msm/msm_bus/msm_bus_dbg.c in android_kernel_huawei_msm8916 through 2017-06-16 in LineageOS, and possibly other kernels for MSM devices, allows attackers to cause a denial of

How urgent is CVE-2017-6899?

Priority 29/100. No elevated risk signals yet.

Software pages

Android vulnerabilities · Huawei vulnerabilities

Related CVEs

CVE-2019-1010221 MEDIUM 6.8 UPGRADE LineageOS 16.0 and earlier is affected by: Incorrect Access Control

References

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