CVE-2024-26840 cachefiles: fix memory leak in cachefiles_add_cache()

In the Linux kernel, the following vulnerability has been resolved: cachefiles: fix memory leak in cachefilesaddcache The following memory leak was reported after unbinding /dev/cachefiles: ================================================================== unreferenced object 0xffff9b674176e3c0...

CVE-2024-26840

CVE-2024-26840 affects the Linux kernel cachefiles subsystem. The available technical details show a memory leak in cachefiles_add_cache() after unbinding /dev/cachefiles, fixed by releasing/adjusting the cache_cred reference count. The documented fix paths include: (1) increase reference handlin...