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| author |   mlarkin <mlarkin@openbsd.org> | 2012-07-11 12:31:28 +0000 |
|---|---|---|
| committer | mlarkin <mlarkin@openbsd.org> | 2012-07-11 12:31:28 +0000 |
| commit | bbba7c70b38d4ceba74b2046cfe221e9847926a4 (patch) | |
| tree | 9f9ecdd5827b2be13976a64eff0c500a60a70f3a | |
| parent | first go at a manpage (diff) | |
| download | wireguard-openbsd-bbba7c70b38d4ceba74b2046cfe221e9847926a4.tar.xz wireguard-openbsd-bbba7c70b38d4ceba74b2046cfe221e9847926a4.zip | |
add a check for the total size of swap, abort if too small.
used by the hibernate code.
ok deraadt@
| -rw-r--r-- | sys/uvm/uvm_swap.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/uvm/uvm_swap.c b/sys/uvm/uvm_swap.c index 6b7568b0a65..2c117da8805 100644 --- a/sys/uvm/uvm_swap.c +++ b/sys/uvm/uvm_swap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_swap.c,v 1.106 2012/07/11 10:07:40 mlarkin Exp $ */ +/* $OpenBSD: uvm_swap.c,v 1.107 2012/07/11 12:31:28 mlarkin Exp $ */ /* $NetBSD: uvm_swap.c,v 1.40 2000/11/17 11:39:39 mrg Exp $ */ /* @@ -2116,6 +2116,9 @@ uvm_swap_check_range(dev_t swdev, size_t size) ex = swd->swd_ex; start = swd->swd_drumsize-npages; + if (npages > swd->swd_drumsize) + return (1); + LIST_FOREACH(exr, &ex->ex_regions, er_link) { if (exr->er_end >= start) |