Validate that blocksize != 0 as a blocksize == 0 can cause a division-by-zero error. Signed-off-by: Timo Warns <warns@xxxxxxxxxxxx> --- diff -r -u a/shlibs/blkid/src/superblocks/hfs.c b/shlibs/blkid/src/superblocks/hfs.c --- a/shlibs/blkid/src/superblocks/hfs.c 2011-04-19 13:09:52.000000000 +0200 +++ b/shlibs/blkid/src/superblocks/hfs.c 2011-05-06 10:56:17.000000000 +0200 @@ -225,6 +225,9 @@ hfs_set_uuid(pr, hfsplus->finder_info.id, sizeof(hfsplus->finder_info.id)); blocksize = be32_to_cpu(hfsplus->blocksize); + if (blocksize == 0) + return 0; + memcpy(extents, hfsplus->cat_file.extents, sizeof(extents)); cat_block = be32_to_cpu(extents[0].start_block); -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
