3571e53040
patches for easier mirroring, to eliminate a special copy, to make www.freebsd.org/security a full copy of security.freebsd.org and be eventually be the same. For now files are just sitting there. The symlinks are missing. Discussed on: www (repository location) Discussed with: simon (so)
16 lines
705 B
Diff
16 lines
705 B
Diff
Index: sys/kern/sys_pipe.c
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===================================================================
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RCS file: /home/ncvs/src/sys/kern/sys_pipe.c,v
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retrieving revision 1.201
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diff -p -u -I__FBSDID -I$FreeBSD -r1.201 sys_pipe.c
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--- sys/kern/sys_pipe.c 10 Mar 2009 21:28:43 -0000 1.201
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+++ sys/kern/sys_pipe.c 5 Jun 2009 07:53:01 -0000
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@@ -761,6 +761,8 @@ pipe_build_write_buffer(wpipe, uio)
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pmap = vmspace_pmap(curproc->p_vmspace);
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endaddr = round_page((vm_offset_t)uio->uio_iov->iov_base + size);
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addr = trunc_page((vm_offset_t)uio->uio_iov->iov_base);
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+ if (endaddr < addr)
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+ return (EFAULT);
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for (i = 0; addr < endaddr; addr += PAGE_SIZE, i++) {
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/*
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* vm_fault_quick() can sleep. Consequently,
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