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authortrhodes <trhodes@FreeBSD.org>2006-10-14 10:30:14 +0000
committertrhodes <trhodes@FreeBSD.org>2006-10-14 10:30:14 +0000
commite7d9ab08978136ae53298ee700121a023f30501c (patch)
tree59f487923e701bd1c9d02cb0ddceab72c9809e9f /sys
parentc990b26f9c8c03b86fd30d9610c3cff8da4ab44a (diff)
downloadFreeBSD-src-e7d9ab08978136ae53298ee700121a023f30501c.zip
FreeBSD-src-e7d9ab08978136ae53298ee700121a023f30501c.tar.gz
Close a race condition where num can be larger than tmp, giving the user
too large of a boundary. Reported by: Ilja Van Sprundel
Diffstat (limited to 'sys')
-rw-r--r--sys/kern/sys_process.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c
index 20db01c..26dd0f7 100644
--- a/sys/kern/sys_process.c
+++ b/sys/kern/sys_process.c
@@ -980,7 +980,7 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
error = copyout(buf, addr, tmp * sizeof(lwpid_t));
free(buf, M_TEMP);
if (!error)
- td->td_retval[0] = num;
+ td->td_retval[0] = tmp;
PROC_LOCK(p);
break;
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