7.8

CVE-2026-64381

smb: client: Fix next buffer leak in receive_encrypted_standard()

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

smb: client: Fix next buffer leak in receive_encrypted_standard()

receive_encrypted_standard() allocates next_buffer before checking
whether the number of compound PDUs already reached MAX_COMPOUND. If
the limit check fails, the function returns immediately and the newly
allocated next_buffer is not assigned to server->smallbuf/server->bigbuf,
making it leaked.

Move the MAX_COMPOUND check before allocating next_buffer.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.19 < 5.10.261
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.212
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.178
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.145
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.96
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.39
Linux ≫ Linux Kernel Version >= 6.19 < 7.1.4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.075
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/94e4f672db029414b9888b5137a7559f1febf2d8
Patch
https://git.kernel.org/stable/c/68fc0b6cc03ca58060c0f36454e169f5fe258974
Patch
https://git.kernel.org/stable/c/07e0ab81df1790afa35732a4e8e07ff831b29008
Patch
https://git.kernel.org/stable/c/9136a08dc29328edd9867f2545e73906ac9df93b
Patch
https://git.kernel.org/stable/c/67097772df7791c53d608f04bd31c676ccf79b83
Patch
https://git.kernel.org/stable/c/297243e365fc9fe2f8e9b7dd535a65d922cd108b
Patch
https://git.kernel.org/stable/c/927d4805aea0a287d36dd4f826ee24d69a2afee3
Patch
https://git.kernel.org/stable/c/1c6267a1d5cf4c73b656f8181b310cbbb3e4767b
Patch