From: B Horn <b...@horn.uk> It was possible for a grub_errno to not be set if mount of an ISO 9660 filesystem failed when set_rockridge() returned 0.
This isn't known to be exploitable as the other filesystems due to filesystem helper checking the requested file type. Though fixing as a precaution. Reported-by: B Horn <b...@horn.uk> Signed-off-by: B Horn <b...@horn.uk> Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com> --- grub-core/fs/iso9660.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/grub-core/fs/iso9660.c b/grub-core/fs/iso9660.c index 8c348b59a..8d480e602 100644 --- a/grub-core/fs/iso9660.c +++ b/grub-core/fs/iso9660.c @@ -551,6 +551,9 @@ grub_iso9660_mount (grub_disk_t disk) return data; fail: + if (grub_errno == GRUB_ERR_NONE) + grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem"); + grub_free (data); return 0; } -- 2.11.0 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
