CVE-2024-46742 Information

Description

In the Linux kernel the following vulnerability has been resolved:

smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()

null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) and parse_lease_state() return NULL.

Fix this by check if ’lease_ctx_info’ is NULL.

Additionally remove the redundant parentheses in parse_durable_handle_context().

Reference

https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6 https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db