CVE-2026-43378

Description

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2_open() The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is dereferenced after rcu_read_unlock(), creating a use-after-free window.

References

• https://git.kernel.org/stable/c/190e5f808e8058640b408ccfed25440b441a718a
• https://git.kernel.org/stable/c/1e689a56173827669a35da7cb2a3c78ed5c53680
• https://git.kernel.org/stable/c/54b48ae83de8bb06e65079d96368efe359d4909c
• https://git.kernel.org/stable/c/8f5b1a7cb009a93c48e9e334a2f59a660f9afc07
• https://git.kernel.org/stable/c/b720c84087cb547f23ce03eab93568c1769e4556
• https://git.kernel.org/stable/c/e1b21e6066615e7d3d3a7aa2677e415e563fd7cc