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Subjectkernel memory leak fix for af_unix datagram getpeersec

Hi, Catalin and Michal,

Enclosed please find the patch against 2.6.18-rc1 that fixed the kernel
memory leak problem.

Thanks for your help!
Catherine

--

From: cxzhang@watson.ibm.com
Fix the memory leak problem of the original unix datagram getpeersec patch.

---

include/net/scm.h | 4 +++-
net/ipv4/ip_sockglue.c | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)

diff -puN include/net/scm.h~af_unix-datagram-getpeersec-ml-fix include/net/scm.h
--- linux-2.6.18-rc1/include/net/scm.h~af_unix-datagram-getpeersec-ml-fix 2006-07-14 20:44:13.000000000 -0400
+++ linux-2.6.18-rc1-cxzhang/include/net/scm.h 2006-07-14 20:45:07.000000000 -0400
@@ -55,8 +55,10 @@ static __inline__ int scm_send(struct so
#ifdef CONFIG_SECURITY_NETWORK
static inline void scm_passec(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm)
{
- if (test_bit(SOCK_PASSSEC, &sock->flags) && scm->secdata != NULL)
+ if (test_bit(SOCK_PASSSEC, &sock->flags) && scm->secdata != NULL) {
put_cmsg(msg, SOL_SOCKET, SCM_SECURITY, scm->seclen, scm->secdata);
+ kfree(scm->secdata);
+ }
}
#else
static inline void scm_passec(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm)
diff -puN net/ipv4/ip_sockglue.c~af_unix-datagram-getpeersec-ml-fix net/ipv4/ip_sockglue.c
--- linux-2.6.18-rc1/net/ipv4/ip_sockglue.c~af_unix-datagram-getpeersec-ml-fix 2006-07-15 19:03:07.000000000 -0400
+++ linux-2.6.18-rc1-cxzhang/net/ipv4/ip_sockglue.c 2006-07-15 19:03:27.000000000 -0400
@@ -120,6 +120,7 @@ static void ip_cmsg_recv_security(struct
return;

put_cmsg(msg, SOL_IP, SCM_SECURITY, seclen, secdata);
+ kfree(secdata);
}


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