CVE-2015-7891

HIGH

Samsung Graphics 2D driver - Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2015-7891. PoCs published by Google Security Research.

AI-analyzed exploit summary The exploit demonstrates a race condition in the Samsung Graphics 2D driver's ioctl implementation due to improper locking, leading to potential use-after-free vulnerabilities. The PoC involves concurrent ioctl calls from forked processes to trigger the condition.

Description

Race condition in the ioctl implementation in the Samsung Graphics 2D driver (aka /dev/fimg2d) in Samsung devices with Android L(5.0/5.1) allows local users to trigger memory errors by leveraging definition of g2d_lock and g2d_unlock lock macros as no-ops, aka SVE-2015-4598.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdosandroid
https://www.exploit-db.com/exploits/38557

The exploit demonstrates a race condition in the Samsung Graphics 2D driver's ioctl implementation due to improper locking, leading to potential use-after-free vulnerabilities. The PoC involves concurrent ioctl calls from forked processes to trigger the condition.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Racy
Target: Samsung Graphics 2D driver (fimg2d)
No auth needed
Prerequisites: Access to /dev/fimg2d · Ability to fork processes
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/77335
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/project-zero/issues/detail?id=492
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/38557/

Scores

CVSS v3 7.0
EPSS 0.0067
EPSS Percentile 47.0%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-362
Status published
Products (2)
samsung/samsung_mobile 5.0
samsung/samsung_mobile 5.1
Published Aug 02, 2017
Tracked Since Feb 18, 2026