CVE-2025-37776

ksmbd: fix use-after-free in smb_break_all_levII_oplock()

Published: 5/1/2025 Last updated: 5/26/2025 Reserved: 4/16/2025

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb_break_all_levII_oplock() There is a room in smb_break_all_levII_oplock that can cause racy issues when unlocking in the middle of the loop. This patch use read lock to protect whole loop.

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 (1)

Product	Vendor	Version
Linux	Linux	4.0

References (4)

https://git.kernel.org/stable/c/296cb5457cc6f4a754c4ae29855f8a253d52bcc6
https://git.kernel.org/stable/c/d54ab1520d43e95f9b2e22d7a05fc9614192e5a5
https://git.kernel.org/stable/c/d73686367ad68534257cd88a36ca3c52cb8b81d8
https://git.kernel.org/stable/c/18b4fac5ef17f77fed9417d22210ceafd6525fc7