diff options
| author |   kettenis <kettenis@openbsd.org> | 2015-01-15 16:31:19 +0000 |
|---|---|---|
| committer | kettenis <kettenis@openbsd.org> | 2015-01-15 16:31:19 +0000 |
| commit | 12ccc845a91305ba5e4498d3da9b4213a5080821 (patch) | |
| tree | 21842a58e5f5715ee4f54da0455e653b7fda5d80 | |
| parent | Don't include i82489 headers in cpu.h (diff) | |
| download | wireguard-openbsd-12ccc845a91305ba5e4498d3da9b4213a5080821.tar.xz wireguard-openbsd-12ccc845a91305ba5e4498d3da9b4213a5080821.zip | |
Map the sigcode page with MAP_INHERIT_COPY to make sure it isn't shared ater
a fork.
ok deraadt@
| -rw-r--r-- | sys/kern/kern_exec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index cfddf50f4ac..2f92dc9f7a1 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_exec.c,v 1.154 2015/01/15 10:04:26 kettenis Exp $ */ +/* $OpenBSD: kern_exec.c,v 1.155 2015/01/15 16:31:19 kettenis Exp $ */ /* $NetBSD: kern_exec.c,v 1.75 1996/02/09 18:59:28 christos Exp $ */ /*- @@ -848,7 +848,7 @@ exec_sigcode_map(struct process *pr, struct emul *e) uao_reference(e->e_sigobject); if (uvm_map(&pr->ps_vmspace->vm_map, &pr->ps_sigcode, round_page(sz), e->e_sigobject, 0, 0, UVM_MAPFLAG(PROT_READ | PROT_EXEC, - PROT_READ | PROT_WRITE | PROT_EXEC, MAP_INHERIT_SHARE, + PROT_READ | PROT_WRITE | PROT_EXEC, MAP_INHERIT_COPY, MADV_RANDOM, UVM_FLAG_COPYONW))) { uao_detach(e->e_sigobject); return (ENOMEM); |