CVE-2021-47165
drm/meson: fix shutdown crash when component not probed
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
drm/meson: fix shutdown crash when component not probed
When main component is not probed, by example when the dw-hdmi module is
not loaded yet or in probe defer, the following crash appears on shutdown:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000038
...
pc : meson_drv_shutdown+0x24/0x50
lr : platform_drv_shutdown+0x20/0x30
...
Call trace:
meson_drv_shutdown+0x24/0x50
platform_drv_shutdown+0x20/0x30
device_shutdown+0x158/0x360
kernel_restart_prepare+0x38/0x48
kernel_restart+0x18/0x68
__do_sys_reboot+0x224/0x250
__arm64_sys_reboot+0x24/0x30
...
Simply check if the priv struct has been allocated before using it.
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/meson: corrige el fallo de apagado cuando el componente no se prueba Cuando el componente principal no se prueba, por ejemplo, cuando el módulo dw-hdmi aún no está cargado o en el aplazamiento de la prueba, se produce el siguiente fallo aparece al apagar: No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 0000000000000038... pc: meson_drv_shutdown+0x24/0x50 lr: platform_drv_shutdown+0x20/0x30... Rastreo de llamadas: meson_drv_shutdown+0x24/0x50 platform_drv_shutdown+0x20/0x3 0 dispositivo_apagado+ 0x158/0x360 kernel_restart_prepare+0x38/0x48 kernel_restart+0x18/0x68 __do_sys_reboot+0x224/0x250 __arm64_sys_reboot+0x24/0x30... Simplemente verifique si la estructura priv se ha asignado antes de usarla.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-03-25 CVE Reserved
- 2024-03-25 CVE Published
- 2024-03-26 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/8a5160cc8488776ddc48ea045860dab015f47390 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/8fbbf2b3849419e31731902d7478b0c934732632 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/d2100ef32a8cfd024bad94f4fbc5e53d40d2b3da | Vuln. Introduced | |
| https://git.kernel.org/stable/c/d4ec1ffbdaa8939a208656e9c1440742c457ef16 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/cef14d5d92f14a6e282c3216c2da63e05f14758a | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14.226 < 4.14.235 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14.226 < 4.14.235" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.19.181 < 4.19.193 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.19.181 < 4.19.193" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4.106 < 5.4.124 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4.106 < 5.4.124" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10.24 < 5.10.42 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10.24 < 5.10.42" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.12 < 5.12.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 5.12.9" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.12 < 5.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 5.13" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.11.7 Search vendor "Linux" for product "Linux Kernel" and version "5.11.7" | en |
Affected
| ||||||