CVE-2025-71151
BaseFortify
Publication date: 2026-01-23
Last updated on: 2026-02-26
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 6.11.11 (inc) to 6.12 (exc) |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | From 6.13 (inc) to 6.18.3 (exc) |
| linux | linux_kernel | From 6.12.2 (inc) to 6.12.64 (exc) |
| linux | linux_kernel | From 6.6.64 (inc) to 6.6.120 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-401 | The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability occurs in the Linux kernel's CIFS implementation, specifically in the smb3_reconfigure() function. If the function smb3_sync_session_ctx_passwords() fails, the code returns immediately without freeing and erasing two newly allocated password buffers (new_password and new_password2). This leads to a memory leak and a potential information leak because sensitive password data remains in memory instead of being securely erased.
How can this vulnerability impact me? :
The vulnerability can cause a memory leak and potentially expose sensitive password information in memory. This could allow an attacker with access to the system memory to retrieve passwords that should have been securely erased, leading to unauthorized access or compromise of credentials.
What immediate steps should I take to mitigate this vulnerability?
Apply the patch that fixes the smb3_reconfigure() function in the Linux kernel to ensure that kfree_sensitive() is called on password buffers when smb3_sync_session_ctx_passwords() fails, preventing memory and information leaks.