CVE-2025-71106
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: PM: Fix reverse check in filesystems_freeze_callback()
The freeze_all_ptr check in filesystems_freeze_callback() introduced by commit a3f8f8662771 ("power: always freeze efivarfs") is reverse which quite confusingly causes all file systems to be frozen when filesystem_freeze_enabled is false.
On my systems it causes the WARN_ON_ONCE() in __set_task_frozen() to trigger, most likely due to an attempt to freeze a file system that is not ready for that.
Add a logical negation to the check in question to reverse it as appropriate.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a3f8f8662771285511ae26c4c8d3ba1cd22159b9 < b107196729ff6b9d6cde0a71f49c1243def43328 | affected |
| Linux | Linux | a3f8f8662771285511ae26c4c8d3ba1cd22159b9 < 222047f68e8565c558728f792f6fef152a1d4d51 | affected |
| Linux | Linux | 6.18 | affected |
| Linux | Linux | 0 < 6.18 | unaffected |
| Linux | Linux | 6.18.3 <= 6.18.* | unaffected |
| Linux | Linux | 6.19 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b107196729ff6b9d6cde0a71f49c1243def43328
- https://git.kernel.org/stable/c/222047f68e8565c558728f792f6fef152a1d4d51
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