CVE-2026-98452

In the Linux kernel, the following vulnerability has been resolved:

smb: client: clean up failed cached directory opens

open_cached_dir() sends CREATE and QUERY_INFO as a compound request. If

the CREATE succeeds but a later command returns an error, the function

must retain the CREATE FID so common cleanup can issue SMB2_close(). It

also must not treat a response error as a valid CREATE.

Validate the CREATE response before using its fields, record the FIDs, and

mark the handle open before handling errors from later compound commands.

Move the -EREMCHG reconnect handling before response validation so a

missing response does not hide the reconnect request. Count the handle

when it is marked open; confirmed close responses decrement the counter,

while existing close retry behavior remains best effort on transport

failures.