CVE-2026-64387
CRITICAL
9,8
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix query directory replay double-free
A response-bearing attempt can return a replayable error and free its
response buffer. If SMB2_query_directory_init() fails before the next send,
cleanup retains the previous buffer type and frees that response again.
Reset response bookkeeping before each attempt to prevent the stale free.
https://git.kernel.org/stable/c/00b0fa425941438b664950a8ee65dfba2def4336
https://git.kernel.org/stable/c/1665f25b1dea30bf2d02e16245d203a944c9d994
https://git.kernel.org/stable/c/3317a5d015fca976475aa71df224056777316fde
https://git.kernel.org/stable/c/3409aedf3c81a810243da94164f6621c9d205c98
https://git.kernel.org/stable/c/9647492b5e41954be59d5157eddbcd4cdc1656f7