CVE-2022-49483

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49483
In the Linux kernel, the following vulnerability has been resolved: drm/msm/disp/dpu1: avoid clearing hw interrupts if hw_intr is null during drm uninit If edp modeset init is failed due to panel being not ready and probe defers during drm bind, avoid clearing irqs and dereference hw_intr when hw_intr is null. BUG: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Call trace: dpu_core_irq_uninstall+0x50/0xb0 dpu_irq_uninstall+0x18/0x24 msm_drm_uninit+0xd8/0x16c msm_drm_bind+0x580/0x5fc try_to_bring_up_master+0x168/0x1c0 __component_add+0xb4/0x178 component_add+0x1c/0x28 dp_display_probe+0x38c/0x400 platform_probe+0xb0/0xd0 really_probe+0xcc/0x2c8 __driver_probe_device+0xbc/0xe8 driver_probe_device+0x48/0xf0 __device_attach_driver+0xa0/0xc8 bus_for_each_drv+0x8c/0xd8 __device_attach+0xc4/0x150 device_initial_probe+0x1c/0x28 Changes in V2: - Update commit message and coreect fixes tag. Patchwork: https://patchwork.freedesktop.org/patch/484430/

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/01013ba9bbddc62f7d011163cebfd7ed06bb698b Patch
https://git.kernel.org/stable/c/a7ca30c3a8b2e8bda65f2b922d382ac056be8aa4 Patch
https://git.kernel.org/stable/c/a800701429313149afde18d98821554fbfcb3164 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

17 Mar 2025, 16:53

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/01013ba9bbddc62f7d011163cebfd7ed06bb698b - () https://git.kernel.org/stable/c/01013ba9bbddc62f7d011163cebfd7ed06bb698b - Patch
References () https://git.kernel.org/stable/c/a7ca30c3a8b2e8bda65f2b922d382ac056be8aa4 - () https://git.kernel.org/stable/c/a7ca30c3a8b2e8bda65f2b922d382ac056be8aa4 - Patch
References () https://git.kernel.org/stable/c/a800701429313149afde18d98821554fbfcb3164 - () https://git.kernel.org/stable/c/a800701429313149afde18d98821554fbfcb3164 - Patch
CWE CWE-476
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/disp/dpu1: evitar borrar interrupciones de hardware si hw_intr es nulo durante la desiniciación de drm. Si la inicialización del modo edp falla debido a que el panel no está listo y la sonda se pospone durante el enlace de drm, evitar borrar irq y desreferenciar hw_intr cuando hw_intr es nulo. ERROR: No se puede gestionar la desreferencia del puntero NULL del núcleo en la dirección virtual 0000000000000000 Seguimiento de llamadas: dpu_core_irq_uninstall+0x50/0xb0 dpu_irq_uninstall+0x18/0x24 msm_drm_uninit+0xd8/0x16c msm_drm_bind+0x580/0x5fc try_to_bring_up_master+0x168/0x1c0 __component_add+0xb4/0x178 component_add+0x1c/0x28 dp_display_probe+0x38c/0x400 platform_probe+0xb0/0xd0 really_probe+0xcc/0x2c8 __driver_probe_device+0xbc/0xe8 driver_probe_device+0x48/0xf0 __device_attach_driver+0xa0/0xc8 bus_for_each_drv+0x8c/0xd8 __device_attach+0xc4/0x150 device_initial_probe+0x1c/0x28 Cambios en la versión 2: - Se actualiza el mensaje de confirmación y la etiqueta de correcciones de errores. Patchwork: https://patchwork.freedesktop.org/patch/484430/

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-03-17 16:53

NVD link : CVE-2022-49483

Mitre link : CVE-2022-49483

CVE.ORG link : CVE-2022-49483

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference