CVE-2023-54297
Memory Leak in Linux Kernel btrfs Zoned Filesystem Component
Publication date: 2025-12-30
Last updated on: 2025-12-30
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 | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a memory leak in the Linux kernel's btrfs filesystem when used with zoned devices. Specifically, in the function exclude_super_stripes(), if a block group with super blocks is found on a zoned filesystem, the function exits with an error but fails to free the allocated memory for the logical address of the super blocks, causing a memory leak. The fix involves properly freeing this memory to prevent the leak.
How can this vulnerability impact me? :
The memory leak could lead to increased memory usage over time, potentially causing system instability or degraded performance on systems using the btrfs filesystem with zoned devices. This could affect system reliability until the memory is reclaimed or the system is restarted.