| Message ID | 1648797810-27042-1-git-send-email-baihaowen@meizu.com |
|---|---|
| State | New |
| Delegated to: | Richard Weinberger |
| Headers | show |
| Series | fs/jffs2: Fix potential NULL dereference in jffs2_add_frag_to_fragtree() | expand |
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c index b86c78d178c6..ed3b3b25bfab 100644 --- a/fs/jffs2/nodelist.c +++ b/fs/jffs2/nodelist.c @@ -246,7 +246,7 @@ static int jffs2_add_frag_to_fragtree(struct jffs2_sb_info *c, struct rb_root *r return no_overlapping_node(c, root, newfrag, this, lastend); } - if (this->node) + if (this && this->node) dbg_fragtree2("dealing with frag %u-%u, phys %#08x(%d).\n", this->ofs, this->ofs + this->size, ref_offset(this->node->raw), ref_flags(this->node->raw));
this could be null, so we need to checking null before dereference Signed-off-by: Haowen Bai <baihaowen@meizu.com> --- fs/jffs2/nodelist.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)