16 Oct
2024
16 Oct
'24
10:16 p.m.
On Wed, 16 Oct 2024 23:12:43 +0900 Jeongjun Park aha310510@gmail.com wrote:
Therefore, when calling generic_fillattr() from shmem_getattr(), it is appropriate to protect the inode using inode_lock_shared() and inode_unlock_shared() to prevent data-race.
Cc: stable@vger.kernel.org
I think this patch should be applied from next rc version and also stable version. When calling generic_fillattr(), if you don't hold read lock, data-race will occur in inode member variables, which can cause unexpected behavior. This problem is also present in several stable versions, so I think it should be fixed as soon as possible.
OK, thanks, I added the cc:stable amd moved this into the mm-hotfixes pile for a 6.12-rcX merge.