CVE-2022-50485

In the Linux kernel, the following vulnerability has been resolved: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode There are many places that will get unhappy (and crash) when ext4_iget() returns a bad inode. However, if iget the boot loader inode, allows a bad inode to be returned, because the inode may not be initialized. This mechanism can be used to bypass some checks and cause panic. To solve this problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag we'd be returning bad inode from ext4_iget(), otherwise we always return the error code if the inode is bad inode.(suggested by Jan Kara)

• linux linux kernel (>= 3.10 < 5.4.229) • linux linux kernel (>= 5.5 < 5.10.163) • linux linux kernel (>= 5.11 < 5.15.87) • linux linux kernel (>= 5.16 < 6.0.18) • linux linux kernel (>= 6.1 < 6.1.4)