CVE-2022-48874

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free and race in fastrpc_map_find Currently, there is a race window between the point when the mutex is unlocked in fastrpc_map_lookup and the reference count increasing (fastrpc_map_get) in fastrpc_map_find, which can also lead to use-after-free. So lets merge fastrpc_map_find into fastrpc_map_lookup which allows us to both protect the maps list by also taking the &fl->lock spinlock and the reference count, since the spinlock will be released only after. Add take_ref argument to make this suitable for all callers.

The following products are affected by CVE-2022-48874 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-48874.

URL	Resource
https://git.kernel.org/stable/c/9446fa1683a7e3937d9970248ced427c1983a1c5
https://git.kernel.org/stable/c/a50c5c25b6e7d2824698c0e6385f882a18f4a498
https://lore.kernel.org/linux-cve-announce/2024082106-CVE-2022-48874-e8a4@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-48874
https://www.cve.org/CVERecord?id=CVE-2022-48874