Resource management error in Linux kernel - CVE-2022-49506
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104867
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49506
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the mtk_drm_cmdq_pkt_destroy(), mtk_drm_crtc_destroy(), mtk_drm_crtc_enable_vblank() and mtk_drm_crtc_create() functions in drivers/gpu/drm/mediatek/mtk_drm_crtc.c, within the rdma_update_bits() function in drivers/gpu/drm/mediatek/mtk_disp_rdma.c, within the mtk_disp_ovl_irq_handler() and mtk_ovl_disable_vblank() functions in drivers/gpu/drm/mediatek/mtk_disp_ovl.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49506
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/3a4027b5971fe2a94e32754f007d9d3c12c68ad1
- https://git.kernel.org/stable/c/8a265d9838bc3c63579002d55c2b2c655c4f8f26
- https://git.kernel.org/stable/c/8a2dbdeccef6de47565638abdf3c25f41cdffc37
- https://git.kernel.org/stable/c/b74d921b900b6ce38c6247c0a1c86be9f3746493
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.54
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19