CVE-2023-53358

ksmbd: fix racy issue under cocurrent smb2 tree disconnect

Published: 9/17/2025 Last updated: 9/19/2025 Reserved: 9/17/2025

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue under cocurrent smb2 tree disconnect There is UAF issue under cocurrent smb2 tree disconnect. This patch introduce TREE_CONN_EXPIRE flags for tcon to avoid cocurrent access.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (2)

Product	Vendor	Version
Linux	Linux	< 10.0.19042.1889
Linux	Linux	before 11.0.3

References (5)

https://git.kernel.org/stable/c/b36295c17fb97424406f0c3ab321b1ccaabb9be8
https://git.kernel.org/stable/c/bd80d35725a0cf4df9307bfe2f1a3b2cb983d8e6
https://git.kernel.org/stable/c/dc1c17716c099c90948ebb83e2170dd75a3be6b6
https://git.kernel.org/stable/c/39366b47a59d46af15ac57beb0996268bf911f6a
https://git.kernel.org/stable/c/30210947a343b6b3ca13adc9bfc88e1543e16dd5