Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: net: cpsw_new: unregister devlink on port registration failure cpsw_probe() registers devlink before registering the CPSW ports. If cpsw_register_ports() fails, the error path only unregisters the notifiers and then releases the lower level resources. It does not undo the successful cpsw_register_devlink() call, leaving the devlink instance and its parameters registered after probe has failed. Add a devlink cleanup label for the path where devlink registration has already succeeded, and use it when port registration fails.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• git.kernel.org/stable/c/0a44945b0d3422f5d81b49c97e293f3e21a8c585
• git.kernel.org/stable/c/2bcf21ede6b097ca96cb1f7679761acca6510555
• git.kernel.org/stable/c/43d4af5c5331ea739a49cb1097d41e502ed91ec4
• git.kernel.org/stable/c/5a5ac0defdd42e566f1c871272370b6a3a8eef5c
• git.kernel.org/stable/c/8af61d5bd87fd1a3bdc81fe948e7acdc8aa5bcf0
• git.kernel.org/stable/c/b020390b4ef39adc40c800301042baf812280da1
• git.kernel.org/stable/c/b64f763b607426ac97e44b114f0b8844ac3b86dd