9.8

CVE-2026-64386

smb: client: fix query_info() replay double-free

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix query_info() replay double-free

A response-bearing attempt can return a replayable error and free its
response buffer. If SMB2_query_info_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 0.46% 0.372
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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/100fb7c455fa86d248b8bd7bb9de757c192870b4
Patch
https://git.kernel.org/stable/c/3c81dda84799f76b42aec598564316e2964440db
Patch
https://git.kernel.org/stable/c/f1add4acb656f5a82806a1ab0e63fed3d8b1bfca
Patch
https://git.kernel.org/stable/c/89234773e8348918111aa15f6922b58cf3843364
Patch
https://git.kernel.org/stable/c/2a88561d66eb855813cf004a0abe648bbb17de5e
Patch