CVEvulnerability
CVE-2026-90166
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
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
- https://git.kernel.org/stable/c/4eb74a34ea401abfbbd5991076715dae3de938df git.kernel.org
- https://git.kernel.org/stable/c/5ffd180307a5ea34dae7f90ff9573ebed6b7fb12 git.kernel.org
- https://git.kernel.org/stable/c/7065d3648b1a48d2c49da3d6364dd3c4d503b10c git.kernel.org
- https://git.kernel.org/stable/c/8461f27902727ad434375caf13a0100aafc0340f git.kernel.org
- https://git.kernel.org/stable/c/d2ccf905f47d2344270749f4dfa905afcd3edeb0 git.kernel.org