Author: markj
Date: Wed Oct 16 21:47:58 2019
New Revision: 353666
URL: https://svnweb.freebsd.org/changeset/base/353666
Log:
Correct the range boundaries used by kern_mincore().
Reported by: alc
Sponsored by: Netflix
Modified:
head/sys/vm/vm_mmap.c
Modified: head/sys/vm/vm_mmap.c
==============================================================================
--- head/sys/vm/vm_mmap.c Wed Oct 16 21:46:49 2019 (r353665)
+++ head/sys/vm/vm_mmap.c Wed Oct 16 21:47:58 2019 (r353666)
@@ -800,7 +800,7 @@ kern_mincore(struct thread *td, uintptr_t addr0, size_
* mode.
*/
first_addr = addr = trunc_page(addr0);
- end = addr + (vm_size_t)round_page(len);
+ end = round_page(addr0 + len);
map = &td->td_proc->p_vmspace->vm_map;
if (end > vm_map_max(map) || end < addr)
return (ENOMEM);
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