CVE-2023-53137 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ext4: Fix possible corruption when moving a directory

When we are renaming a directory to a different directory we need to update ‘..’ entry in the moved directory. However nothing prevents moved directory from being modified and even converted from the inline format to the normal format. When such race happens the rename code gets confused and we crash. Fix the problem by locking the moved directory.

Reference

https://git.kernel.org/stable/c/0813299c586b175d7edb25f56412c54b812d0379 https://git.kernel.org/stable/c/0c440f14558bfacd22c6935ae1fd4b2a09e96b5d https://git.kernel.org/stable/c/291cd19d107e197306869cb3237c1bba62d13182 https://git.kernel.org/stable/c/8dac5a63cf79707b547ea3d425fead5f4482198f https://git.kernel.org/stable/c/b0bb13612292ca90fa4c2a7e425375649bc50d3e https://git.kernel.org/stable/c/c50fc503ee1b97f12c98e26afc39fdaebebcf04f