In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix null-ptr-deref in ksmbd_ipc_tree_connect_request()
See the procedure below:
ksmbd_tree_conn_connect
ksmbd_share_config_get
share->name = kstrdup() // fail
if (!test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) // false
// do not check `share->name`
ksmbd_ipc_tree_connect_request
strlen(share->name) // null-ptr-deref
References 4
https://git.kernel.org/stable/c/4eb74a34ea401abfbbd5991076715dae3de938df
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7065d3648b1a48d2c49da3d6364dd3c4d503b10c
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8461f27902727ad434375caf13a0100aafc0340f
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d2ccf905f47d2344270749f4dfa905afcd3edeb0
416baaa9-dc9f-4396-8d5f-8c081fb06d67