In the Linux kernel, the following vulnerability has been resolved: ovl: Filter invalid inodes with missing lookup function Add a check to the ovl_dentry_weird() function to prevent the processing of directory inodes that lack the lookup function. This is important because such inodes can cause errors in overlayfs when passed to the lowerstack.
https://git.kernel.org/stable/c/ff43d008bbf9b27ada434d6455f039a5ef6cee53
https://git.kernel.org/stable/c/f9248e2f73fb4afe08324485e98c815ac084d166
https://git.kernel.org/stable/c/c8b359dddb418c60df1a69beea01d1b3322bfe83
https://git.kernel.org/stable/c/749eac5a6687ec99116e0691d0d71225254654e3
https://git.kernel.org/stable/c/72014e7745cc8250bb8f27bd78694dfd3f1b5773
https://git.kernel.org/stable/c/5f86e79c0b2287ffdabe6c1b305a36c4e0f40fe3
https://git.kernel.org/stable/c/065bf5dd21639f80e68450de16bda829784dbb8c