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Hold SOCK_LOCK(so) while frobbing so_options. Note that while the

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local race is corrected, there's still a global race in sosend()
relating to so_options and the SO_DONTROUTE flag.
This commit is contained in:
Robert Watson 2004-06-18 04:02:56 +00:00
parent a5de0db8b5
commit 7b574f2e45
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=130668
1 changed files with 4 additions and 1 deletions
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5
sys/kern/uipc_socket.c
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@ -778,8 +778,11 @@ sosend(so, addr, uio, top, control, flags, td)
(resid > 0 && space > 0) ? PRUS_MORETOCOME : 0,
top, addr, control, td);
splx(s);
if (dontroute)
if (dontroute) {
SOCK_LOCK(so);
so->so_options &= ~SO_DONTROUTE;
SOCK_UNLOCK(so);
}
clen = 0;
control = NULL;
top = NULL;