projects / openwrt / staging / blogic.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 0d41382) | patch
md: add mddev->pers to avoid potential NULL pointer dereference
authorYufen Yu <yuyufen@huawei.com>
Tue, 2 Apr 2019 06:22:14 +0000 (14:22 +0800)
committerSong Liu <songliubraving@fb.com>
Wed, 10 Apr 2019 22:26:08 +0000 (15:26 -0700)
commitee37e62191a59d253fc916b9fc763deb777211e2
tree09696aa3b9f5d4736149fa19fd8427e80ed858a0tree | snapshot
parent0d413829bd20d5563c2c3287479a7348810cb13fcommit | diff
md: add mddev->pers to avoid potential NULL pointer dereference

When doing re-add, we need to ensure rdev->mddev->pers is not NULL,
which can avoid potential NULL pointer derefence in fallowing
add_bound_rdev().

Fixes: a6da4ef85cef ("md: re-add a failed disk")
Cc: Xiao Ni <xni@redhat.com>
Cc: NeilBrown <neilb@suse.com>
Cc: <stable@vger.kernel.org> # 4.4+
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
drivers/md/md.c diff | blob | history
John Crispins staging tree