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Date: Fri, 29 Aug 2008 04:21:18 +0200 (CEST) From: Roman Zippel <zippel@...ux-m68k.org> To: Eric Sesterhenn <snakebyte@....de> cc: linux-kernel@...r.kernel.org Subject: Re: [Patch] Fix another bug in hfsplus when reading a corrupted image Hi, On Tue, 26 Aug 2008, Eric Sesterhenn wrote: > Problem is that there is no ext_tree, causing the NULL-pointer > dereference in hfsplus_init(). This fixes the issue by checking the ext_tree in > hfsplus_get_block() and aborting early enoug. The problem is worse, a corrupted extent for the extent file itself may try to get an impossible extent, causing a deadlock if I see it correctly. A better fix would be to check the inode number after the first_blocks checks and fail if it's the extent file, as according to the spec the extent file should have no extent for itself. bye, Roman -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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