8.8

CVE-2026-64382

smb: client: fix double-free in SMB2_open() replay

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.6.32 < 6.6.145
Linux ≫ Linux Kernel Version >= 6.8.1 < 6.12.96
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.39
Linux ≫ Linux Kernel Version >= 6.19 < 7.1.4
Linux ≫ Linux Kernel Version 6.8 Update -
Linux ≫ Linux Kernel Version 6.8 Update rc2
Linux ≫ Linux Kernel Version 6.8 Update rc3
Linux ≫ Linux Kernel Version 6.8 Update rc4
Linux ≫ Linux Kernel Version 6.8 Update rc5
Linux ≫ Linux Kernel Version 6.8 Update rc6
Linux ≫ Linux Kernel Version 6.8 Update rc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.35% 0.28
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-415 Double Free

The product calls free() twice on the same memory address.

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