CVE-2026-64382

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_open() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_open_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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-25)

CWE

CWE-415

Published

2026-07-25

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/02bc2896bdc3e29362d6e40d404006944a159c25
• https://git.kernel.org/stable/c/14498ff5ce0f272ce0ef988721413e06b7038972
• https://git.kernel.org/stable/c/3196b5192f246df4272072f61a2f4a3e9967f55d
• https://git.kernel.org/stable/c/b55e182f2324bc6a604c21a47aa6c448f719a532
• https://git.kernel.org/stable/c/ff2d30927bc3bf3c629f0768d2068096e64ef5ce

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