Vulnerability Database

309,540

Total vulnerabilities in the database

CVE-2025-37777

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.

  • Published: May 1, 2025
  • Updated: Nov 15, 2025
  • CVE: CVE-2025-37777
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWEs:

Software From Fixed in
linux / linux_kernel 5.15 6.6.101
linux / linux_kernel 6.7 6.12.26
linux / linux_kernel 6.13 6.14.4
linux / linux_kernel 6.15-rc1 6.15-rc1.x
linux / linux_kernel 6.15-rc2 6.15-rc2.x