CVE-2022-49742 Information

Description

In the Linux kernel the following vulnerability has been resolved:

f2fs: initialize locks earlier in f2fs_fill_super()

syzbot is reporting lockdep warning at f2fs_handle_error() [1] for spin_lock(&sbi->error_lock) is called before spin_lock_init() is called. For safe locking in error handling move initialization of locks (and obvious structures) in f2fs_fill_super() to immediately after memory allocation.

Reference

https://git.kernel.org/stable/c/92b4cf5b48955a4bdd15fe4e2067db8ebd87f04c https://git.kernel.org/stable/c/ddeff03bb33810fcf2f0c18e03d099cf0aacda62