Commit b9557caa authored by Pan Bian's avatar Pan Bian Committed by Daniel Borkmann
Browse files

bpf, inode_storage: Put file handler if no storage was found 



Put file f if inode_storage_ptr() returns NULL.

Fixes: 8ea63684 ("bpf: Implement bpf_local_storage for inodes")
Signed-off-by: default avatarPan Bian <bianpan2016@163.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarKP Singh <kpsingh@kernel.org>
Link: https://lore.kernel.org/bpf/20210121020856.25507-1-bianpan2016@163.com
parent f4a2da75

kernel/bpf/bpf_inode_storage.c

+5 −1
Original line number Diff line number Diff line
@@ -125,8 +125,12 @@ static int bpf_fd_inode_storage_update_elem(struct bpf_map *map, void *key, 


	fd = *(int *)key;

	f = fget_raw(fd);

	if (!f || !inode_storage_ptr(f->f_inode))

	if (!f)

		return -EBADF;

	if (!inode_storage_ptr(f->f_inode)) {

		fput(f);

		return -EBADF;

	}



	sdata = bpf_local_storage_update(f->f_inode,

					 (struct bpf_local_storage_map *)map,