CVE-2023-53391
BaseFortify
Publication date: 2025-09-18
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 2.6.30 (inc) to 5.10.188 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.121 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.1.39 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.4.4 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-NVD-CWE-noinfo |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a memory leak in the Linux kernel related to the ramfs-based tmpfs filesystem. Specifically, the ramfs-based tmpfs uses ramfs_init_fs_context() to allocate memory for fc->s_fs_info, but it did not properly free this memory because it did not use ramfs_kill_sb() in the kill_sb method. The fix involves using ramfs_kill_sb() to free the allocated memory and avoid the leak.
How can this vulnerability impact me? :
The vulnerability can lead to a memory leak in the Linux kernel when using ramfs-based tmpfs. Over time, this memory leak could cause increased memory usage, potentially degrading system performance or leading to resource exhaustion.