[sr-dev] git:3.1: mem: safety check for f_malloc to avoind inserting two times free fragments

Module: sip-router Branch: 3.1 Commit: 1db591ed633a101a150f9b66bf6556329590dc64 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=1db591e… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Anca Vamanu <anca.vamanu(a)1and1.ro> Date: Mon Apr 2 09:50:17 2012 +0200 mem: safety check for f_malloc to avoind inserting two times free fragments (cherry picked from commit fbf65a9405e9d1618a94a1e4c23390b8575445b8) --- mem/f_malloc.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/mem/f_malloc.c b/mem/f_malloc.c index 6fa88c3..54cbb34 100644 --- a/mem/f_malloc.c +++ b/mem/f_malloc.c @@ -440,6 +440,11 @@ void fm_free(struct fm_block* qm, void* p) MDBG("fm_free: freeing block alloc'ed from %s: %s(%ld)\n", f->file, f->func, f->line); #endif + if(unlikely(f->u.nxt_free!=NULL)) { + LM_INFO("freeing a free fragment (%p/%p) - ignore\n", + f, p); + return; + } size=f->size; #if defined(DBG_F_MALLOC) || defined(MALLOC_STATS) qm->used-=size;