From a9dd945ccef07a904e412f208f8de708a3d7159e Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Tue, 27 Oct 2020 10:10:02 -0500 Subject: gfs2: Add missing truncate_inode_pages_final for sd_aspace 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: Bob Peterson Signed-off-by: Andreas Gruenbacher --- fs/gfs2/super.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/gfs2') diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index b285192bd6b3..b3d951ab8068 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -738,6 +738,7 @@ restart: 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); -- cgit v1.2.3-70-g09d2