Description
The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device.
Published: 2016-12-28
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-772-1 linux security update
EUVD EUVD EUVD-2016-10382 The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device.
History

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Subscriptions

Linux Linux Kernel
Redhat Enterprise Linux Enterprise Mrg Rhel Extras Rt
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T02:59:01.667Z

Reserved: 2016-11-23T00:00:00.000Z

Link: CVE-2016-9576

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2016-12-28T07:59:00.307

Modified: 2026-05-06T22:30:45.220

Link: CVE-2016-9576

cve-icon Redhat

Severity : Moderate

Publid Date: 2016-11-25T00:00:00Z

Links: CVE-2016-9576 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses