CVE-2023-53358
BaseFortify
Publication date: 2025-09-17
Last updated on: 2025-12-12
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 5.15 (inc) to 5.15.145 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.1.28 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.2.15 (exc) |
| linux | linux_kernel | From 6.3 (inc) to 6.3.2 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a use-after-free (UAF) issue in the Linux kernel's ksmbd component, specifically occurring during concurrent SMB2 tree disconnect operations. The problem arises from a race condition when multiple accesses happen simultaneously, which the patch fixes by introducing TREE_CONN_EXPIRE flags to prevent concurrent access to the tree connection.
How can this vulnerability impact me? :
The use-after-free vulnerability could potentially lead to system instability, crashes, or allow an attacker to execute arbitrary code or cause denial of service by exploiting the race condition during SMB2 tree disconnects.