Messages in this thread | | | Date | Sun, 14 Aug 2005 18:22:00 +0200 | From | Andi Kleen <> | Subject | Re: [patch 2.6.13-rc6] Fix kmem read on 32-bit archs |
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On Sun, Aug 14, 2005 at 12:12:52PM -0400, Chuck Ebbert wrote: > The first thing drivers/char/mem.c:read_kmem does is convert the > loff_t it gets as the offset for reading into an unsigned int. This > patch makes the kmem driver's llseek operator do that up-front, so > that fs/read_write.c:rw_verify_area doesn't return -EINVAL when > we try to read from higher addresses. > > It's ugly but so is the existing code. And it won't fix 64-bit > archs AFAICT. Tested on 2.6.11, patch offsets fixed up for 2.6.13-rc6.
I already have a full patch for this issue queued for 2.6.14.
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