Vulnerabilities > CVE-2021-47165 - Unspecified vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 20 |
References
- https://git.kernel.org/stable/c/4ce2bf20b4a6e307e114847d60b2bf40a6a1fac0
- https://git.kernel.org/stable/c/4ce2bf20b4a6e307e114847d60b2bf40a6a1fac0
- https://git.kernel.org/stable/c/7cfc4ea78fc103ea51ecbacd9236abb5b1c490d2
- https://git.kernel.org/stable/c/7cfc4ea78fc103ea51ecbacd9236abb5b1c490d2
- https://git.kernel.org/stable/c/b4298d33c1fcce511ffe84d8d3de07e220300f9b
- https://git.kernel.org/stable/c/b4298d33c1fcce511ffe84d8d3de07e220300f9b
- https://git.kernel.org/stable/c/b4b91033a0b11fe9ade58156cd9168f89f4a8c1a
- https://git.kernel.org/stable/c/b4b91033a0b11fe9ade58156cd9168f89f4a8c1a
- https://git.kernel.org/stable/c/d66083c0d6f5125a4d982aa177dd71ab4cd3d212
- https://git.kernel.org/stable/c/d66083c0d6f5125a4d982aa177dd71ab4cd3d212
- https://git.kernel.org/stable/c/e256a0eb43e17209e347409a80805b1659398d68
- https://git.kernel.org/stable/c/e256a0eb43e17209e347409a80805b1659398d68