CVE-2026-64381
smb: client: Fix next buffer leak in receive_encrypted_standard()
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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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/94e4f672db029414b9888b5137a7559f1febf2d8
- https://git.kernel.org/stable/c/68fc0b6cc03ca58060c0f36454e169f5fe258974
- https://git.kernel.org/stable/c/07e0ab81df1790afa35732a4e8e07ff831b29008
- https://git.kernel.org/stable/c/9136a08dc29328edd9867f2545e73906ac9df93b
- https://git.kernel.org/stable/c/67097772df7791c53d608f04bd31c676ccf79b83
References (8)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
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