CVE-2026-64597

Description

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.

References

• https://git.kernel.org/stable/c/037511726228aaf165c7067ff2bfc88eaecdf1f3
• https://git.kernel.org/stable/c/0aa97edf7c347c0f54e7e60c4740574b8120c66a
• https://git.kernel.org/stable/c/b18ed621dbfceecea5539848cddcb9272c9a61e1
• https://git.kernel.org/stable/c/d15d83125007f673aec4323e1bbbaaffbe87ea13
• https://git.kernel.org/stable/c/f96e1cdcb63ed3321142ff2fcdf784e32cda8fee