media: v4l2-core: Fix a potential resource leak in v4l2_fwnode_parse_link()
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-core: Fix a potential resource leak in v4l2_fwnode_parse_link() If fwnode_graph_get_remote_endpoint() fails, 'fwnode' is known to be NULL, so fwnode_handle_put() is a no-op. Release the reference taken from a previous fwnode_graph_get_port_parent() call instead. Also handle fwnode_graph_get_port_parent() failures. In order to fix these issues, add an error handling path to the function and the needed gotos.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-core: Fix a potential resource leak in v4l2_fwnode_parse_link() If fwnode_graph_get_remote_endpoint() fails, 'fwnode' is known to be NULL, so fwnode_handle_put() is a no-op. Release the reference taken from a previous fwnode_graph_get_port_parent() call instead. Also handle fwnode_graph_get_port_parent() failures. In order to fix these issues, add an error handling path to the function and the needed gotos.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2342942331e1f034ff58f293e10d0d9b7581601f
- https://git.kernel.org/stable/c/25afb3e03bf8ab02567af4b6ffbfd6250a91a9f8
- https://git.kernel.org/stable/c/4bc5ffaf8ac4f3e7a1fcd10a0a0e7b022b694877
- https://git.kernel.org/stable/c/caf058833b6f3fe7beabf738110f79bb987c8fff
- https://git.kernel.org/stable/c/d7b13edd4cb4bfa335b6008ab867ac28582d3e5c
- https://git.kernel.org/stable/c/d8a8f75fce049bdb3144b607deefe51e996b9660
- https://git.kernel.org/stable/c/e8a1cd87bb9fa3149ee112ecb8058908dc9b520e
- https://git.kernel.org/stable/c/ed1696f7f92e8404940d51dec80a123aa18163a8
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54183.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-54183