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slirp: fix leak 

Spotted by ASAN:

/x86_64/hmp/pc-0.12:
=================================================================
==22538==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 224 byte(s) in 1 object(s) allocated from:
    #0 0x7f0f63cdee60 in malloc (/lib64/libasan.so.3+0xc6e60)
    #1 0x556f11ff32d7 in tcp_newtcpcb /home/elmarco/src/qemu/slirp/tcp_subr.c:250
    #2 0x556f11fdb1d1 in tcp_listen /home/elmarco/src/qemu/slirp/socket.c:688
    #3 0x556f11fca9d5 in slirp_add_hostfwd /home/elmarco/src/qemu/slirp/slirp.c:1052
    #4 0x556f11f8db41 in slirp_hostfwd /home/elmarco/src/qemu/net/slirp.c:506
    #5 0x556f11f8dd83 in hmp_hostfwd_add /home/elmarco/src/qemu/net/slirp.c:535

There might be a better way to fix this, but calling slirp tcp_close()
doesn't work.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This commit is contained in:
Marc-André Lureau 2017-05-04 02:38:45 +04:00 committed by Samuel Thibault
parent c7990a2648
commit 7d8246960e
1 changed files with 3 additions and 0 deletions
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3
slirp/socket.c
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@ -100,6 +100,9 @@ sofree(struct socket *so)
if(so->so_next && so->so_prev)
remque(so); /* crashes if so is not in a queue */
if (so->so_tcpcb) {
free(so->so_tcpcb);
}
free(so);
}