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CVE-2026-64381

nvd nist
Published: Jul 25, 2026Modified: Sep 8, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

Description

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.

Affected (7)

Products: Linux: Linux Kernel
1 product
Linux Kernel
Configuration A
7 vulnerable
Vulnerable SoftwareAffected Versions
Linux
4.19 ≤ version < 5.10.261
5.11 ≤ version < 5.15.212
5.16 ≤ version < 6.1.178
6.13 ≤ version < 6.18.39
6.19 ≤ version < 7.1.4
6.2 ≤ version < 6.6.145
6.7 ≤ version < 6.12.96

References (8)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch

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