CVE-2026-64040

Description

In the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix error return when vfs_mkdir() fails When vfs_mkdir() fails, the error code is not extracted from the returned error pointer. This causes mkdir_error to be reached with ret=0, which leads to returning ERR_PTR(0) (NULL) instead of a proper error pointer. Fix this by extracting the error code from the error pointer when vfs_mkdir() fails.

References

• https://git.kernel.org/stable/c/0940108d27c6995e02819ff832be11892f0b208b
• https://git.kernel.org/stable/c/8a220d1c312c66194f4a33dd52d1fba42bc2b341