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slirp: fix use-after-free

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460fec67ee introduced a use-after free in slirp.

Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Mark McLoughlin 2009-11-20 18:13:10 +00:00 • committed by Aurelien Jarno
parent f7c703250c
commit e0cf6d15e3
1 changed files with 1 additions and 1 deletions
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2
slirp/mbuf.c
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@ -95,8 +95,8 @@ m_free(struct mbuf *m)
* Either free() it or put it on the free list * Either free() it or put it on the free list
*/ */
if (m->m_flags & M_DOFREE) { if (m->m_flags & M_DOFREE) {
free(m);
m->slirp->mbuf_alloced--; m->slirp->mbuf_alloced--;
free(m);
} else if ((m->m_flags & M_FREELIST) == 0) { } else if ((m->m_flags & M_FREELIST) == 0) {
insque(m,&m->slirp->m_freelist); insque(m,&m->slirp->m_freelist);
m->m_flags = M_FREELIST; /* Clobber other flags */ m->m_flags = M_FREELIST; /* Clobber other flags */