Tracker / CVE-2021-47165
CVE-2021-47165
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.
Prodotti e versioni affette
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.14.226 → 4.14.235 |
| linux | linux_kernel · 4.19.181 → 4.19.193 |
| linux | linux_kernel · 5.10.24 → 5.10.42 |
| linux | linux_kernel · 5.12 → 5.12.9 |
| linux | linux_kernel · 5.4.106 → 5.4.124 |