On Mon, Apr 29, 2024 at 04:38:03PM +0000, Lidong Chen wrote: > The test corpus for version-1 RAID generated an infinite recursion > in grub_partition_iterate() while attempting to read the superblock. > The reason for the issue was that the data region overlapped with > the superblock. > > The infinite call loop looks like this: > grub_partition_iterate() -> partmap->iterate() -> > -> grub_disk_read() -> grub_disk_read_small() -> > -> grub_disk_read_small_real() -> grub_diskfilter_read() -> > -> read_lv() -> read_segment() -> grub_diskfilter_read_node() -> > -> grub_disk_read() -> grub_disk_read_small() ->... > > The fix adds checks for both the superblock region and the data > region when parsing the superblock metadata in grub_mdraid_detect(). > > Signed-off-by: Lidong Chen <lidong.c...@oracle.com>
Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com> Daniel _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
