Description
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.
Product status
a3f8f8662771285511ae26c4c8d3ba1cd22159b9 (git) before b107196729ff6b9d6cde0a71f49c1243def43328
a3f8f8662771285511ae26c4c8d3ba1cd22159b9 (git) before 222047f68e8565c558728f792f6fef152a1d4d51
6.18
Any version before 6.18
6.18.3 (semver)
6.19 (original_commit_for_fix)
References
git.kernel.org/...c/b107196729ff6b9d6cde0a71f49c1243def43328
git.kernel.org/...c/222047f68e8565c558728f792f6fef152a1d4d51