diff --git a/ChangeLog b/ChangeLog index 0362abd51..ca63b0e85 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2011-01-07 Vladimir Serbinenko + + * grub-core/fs/xfs.c (grub_xfs_iterate_dir): Take into account that + inopos might be unaligned. + 2011-01-07 Vladimir Serbinenko * grub-core/disk/mdraid1x_linux.c (grub_mdraid_detect): Add missing diff --git a/grub-core/fs/xfs.c b/grub-core/fs/xfs.c index 3d773856e..9f8dc28de 100644 --- a/grub-core/fs/xfs.c +++ b/grub-core/fs/xfs.c @@ -451,18 +451,27 @@ grub_xfs_iterate_dir (grub_fshelp_node_t dir, for (i = 0; i < diro->inode.data.dir.dirhead.count; i++) { grub_uint64_t ino; - void *inopos = (((char *) de) + grub_uint8_t *inopos = (((grub_uint8_t *) de) + sizeof (struct grub_xfs_dir_entry) + de->len - 1); char name[de->len + 1]; + /* inopos might be unaligned. */ if (smallino) - { - ino = grub_be_to_cpu32 (*(grub_uint32_t *) inopos); - ino = grub_cpu_to_be64 (ino); - } + ino = (((grub_uint32_t) inopos[0]) << 24) + | (((grub_uint32_t) inopos[1]) << 16) + | (((grub_uint32_t) inopos[2]) << 8) + | (((grub_uint32_t) inopos[3]) << 0); else - ino = *(grub_uint64_t *) inopos; + ino = (((grub_uint64_t) inopos[0]) << 56) + | (((grub_uint64_t) inopos[1]) << 48) + | (((grub_uint64_t) inopos[2]) << 40) + | (((grub_uint64_t) inopos[3]) << 32) + | (((grub_uint64_t) inopos[4]) << 24) + | (((grub_uint64_t) inopos[5]) << 16) + | (((grub_uint64_t) inopos[6]) << 8) + | (((grub_uint64_t) inopos[7]) << 0); + ino = grub_cpu_to_be64 (ino); grub_memcpy (name, de->name, de->len); name[de->len] = '\0';