Microsoft Security Response Center guidance
Vendor revision: Nov 7, 2026Release Notes
Vendor-listed releases
- 6.6.161.1-1
Vulnerability intelligence
CVE-2026-90166. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
Release Notes
Vendor-listed releases
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
Source: NVD