SB2024060486 - Out-of-bounds read in Linux kernel display amdgpu_dm driver
Published: June 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060486
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2021-47489)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the dp_phy_settings_write(), dp_phy_test_pattern_debugfs_write(), dp_dsc_passthrough_set(), trigger_hotplug(), dp_dsc_clock_en_write(), dp_dsc_slice_width_write(), dp_dsc_slice_height_write(), dp_dsc_bits_per_pixel_write() and dp_max_bpc_write() functions in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/9eb4bdd554fc31a5ef6bf645a20ff21618ce45a9
- https://git.kernel.org/stable/c/3f4e54bd312d3dafb59daf2b97ffa08abebe60f5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.236
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15