On Wed, 1 Jun 2022 17:27:17 +0800, Zhang Yi wrote:
> We capture a NULL pointer issue when resizing a corrupt ext4 image which
> is freshly clear resize_inode feature (not run e2fsck). It could be
> simply reproduced by following steps. The problem is because of the
> resize_inode feature was cleared, and it will convert the filesystem to
> meta_bg mode in ext4_resize_fs(), but the es->s_reserved_gdt_blocks was
> not reduced to zero, so could we mistakenly call reserve_backup_gdb()
> and passing an uninitialized resize_inode to it when adding new group
> descriptors.
>
> [...]
Applied, thanks!
[1/1] ext4: add reserved GDT blocks check
commit: 7dc0ff3a33ea92cefaf032a6d0de9314a9a5fb20
Best regards,
--
Theodore Ts'o <tytso@xxxxxxx>
