drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. a6xx_gmu_init() passes the node to of_find_device_by_node() and of_dma_configure(), of_find_device_by_node() will takes its reference, of_dma_configure() doesn't need the node after usage. Add missing of_node_put() to avoid refcount leak.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. a6xx_gmu_init() passes the node to of_find_device_by_node() and of_dma_configure(), of_find_device_by_node() will takes its reference, of_dma_configure() doesn't need the node after usage. Add missing of_node_put() to avoid refcount leak.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/06907a374f1b74f8f2fb30720dc6df81331e4fb5
- https://git.kernel.org/stable/c/48e82ce8cdb19c20a5020fa446b286d6a147450c
- https://git.kernel.org/stable/c/65ddbc0d26824e2a5d6154d01d8cf39344900213
- https://git.kernel.org/stable/c/6832e36f156ea35a6ed74bca72727806116effdd
- https://git.kernel.org/stable/c/c56de483093d7ad0782327f95dda7da97bc4c315
- https://git.kernel.org/stable/c/edff4c1af831d0c02e654eed9da7d74174de49d5
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49462.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49462