memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe()
In the Linux kernel, the following vulnerability has been resolved: memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe() The break of for_each_available_child_of_node() needs a corresponding of_node_put() when the reference 'child' is not used anymore. Here we do not need to call of_node_put() in fail path as '!match' means no break. While the of_platform_device_create() will created a new reference by 'child' but it has considered the refcounting.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe() The break of for_each_available_child_of_node() needs a corresponding of_node_put() when the reference 'child' is not used anymore. Here we do not need to call of_node_put() in fail path as '!match' means no break. While the of_platform_device_create() will created a new reference by 'child' but it has considered the refcounting.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/44db35ceb94756ba513dcf6b69bf9e949b28469c
- https://git.kernel.org/stable/c/49605dc25e7fb33bf8b671279d4468531da90f89
- https://git.kernel.org/stable/c/566b143aa5112a0c2784e20603778518bb799537
- https://git.kernel.org/stable/c/61b3c876c1cbdb1efd1f52a1f348580e6e14efb6
- https://git.kernel.org/stable/c/b37f4a711e5d4bf3608ccbc6de82b52e92b441a0
- https://git.kernel.org/stable/c/fde46754d5483bc398018bbec3c8ef5c55219e67
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50480.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50480