GHSA-4748-h423-7xq4

GHSA-4748-h423-7xq4 PUBLISHED CVSS 7.800000190734863 HIGH

Record from GitHub Advisory Database · Published May 1, 2025

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in __smb2_lease_break_noti() Move tcp_transport free to ksmbd_conn_free. If ksmbd connection is referenced when ksmbd server thread terminates, It will not be freed, but conn->tcp_transport is freed. __smb2_lease_break_noti can be performed asynchronously when the connection is disconnected. __smb2_lease_break_noti calls ksmbd_conn_write, which can cause use-after-free when conn->ksmbd_transport is already freed.

Risk scores

CVSS 3.1

7.800000190734863

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Timeline

May 1, 2025 CVE Published
May 1, 2026 Security Advisory

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vulnetix vdb vuln GHSA-4748-h423-7xq4
vulnetix vdb fixes GHSA-4748-h423-7xq4

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  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-4748-h423-7xq4/fixes/registry"

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