Messages in this thread | | | From | Zhong Jinghua <> | Subject | [PATCH -next 0/3] nbd: fix null-ptr-dereference while accessing 'nbd->config' | Date | Fri, 7 Jul 2023 11:15:33 +0800 |
| |
From: Zhong Jinghua <zhongjinghua@huawei.com>
nbd->config = config and refcount_set(&nbd->config_refs, 1) in nbd_genl_connect may be out of order, causing config_refs to be set to 1 first, and then nbd_open accessing nbd->config reports a null pointer reference.
Zhong Jinghua (3): nbd: fold nbd config initialization into nbd_alloc_config() nbd: factor out a helper to get nbd_config without holding 'config_lock' nbd: fix null-ptr-dereference while accessing 'nbd->config'
drivers/block/nbd.c | 82 +++++++++++++++++++++++++++++---------------- 1 file changed, 53 insertions(+), 29 deletions(-)
-- 2.31.1
| |