CVE-2026-64387
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.
- Published Jul 25, 2026
- CVSS 9.8 critical
- 0.5% chance of exploitation in the next 30 days (EPSS)
- A fix is available
Affected software
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