Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7b0310b5 authored by Bob Peterson's avatar Bob Peterson Committed by Greg Kroah-Hartman
Browse files

gfs2: Add missing truncate_inode_pages_final for sd_aspace 



[ Upstream commit a9dd945ccef07a904e412f208f8de708a3d7159e ]

Gfs2 creates an address space for its rgrps called sd_aspace, but it never
called truncate_inode_pages_final on it. This confused vfs greatly which
tried to reference the address space after gfs2 had freed the superblock
that contained it.

This patch adds a call to truncate_inode_pages_final for sd_aspace, thus
avoiding the use-after-free.

Signed-off-by: default avatarBob Peterson <rpeterso@redhat.com>
Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 236c85d6

fs/gfs2/super.c

+1 −0
Original line number Diff line number Diff line
@@ -934,6 +934,7 @@ static void gfs2_put_super(struct super_block *sb) 
	gfs2_jindex_free(sdp);

	/*  Take apart glock structures and buffer lists  */

	gfs2_gl_hash_clear(sdp);

	truncate_inode_pages_final(&sdp->sd_aspace);

	gfs2_delete_debugfs_file(sdp);

	/*  Unmount the locking protocol  */

	gfs2_lm_unmount(sdp);