In the Linux kernel, the following vulnerability has been resolved:
eventfs: Initialize ei->children and ei->list in init_ei()
eventfs_create_dir() allocates the eventfs_inode and initializes it with
init_ei(). But this does not initialize the eventfs_inode list_heads. If
the eventfs_create_dir() fails due to memory pressure, it will call
free_ei() before it initialized the lists, and that checks to make sure
the eventfs_inode has no children.
But because the list wasn't
initialized, it will give a false warning. Fix it by moving the list initialization into init_ei().
[ Rewrote change log ]
References 5
https://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5333e18e6b425fcc39c7fea89e3949a2a98bc5e4
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/76e0f85f650738d768449dbccbc7c55d05f5b609
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c480f8af173d5b19c6d9c4311df6bbe352face9e
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/069729282fbecfaa8a54062266c338ed23f08005
416baaa9-dc9f-4396-8d5f-8c081fb06d67