CVE-2026-64597
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_close() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_close_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 Aug 6, 2026
- CVSS 9.8 critical
- 0.7% chance of exploitation in the next 30 days (EPSS)
- A fix is available