Re: [libvirt] [PATCH] xenconfig: avoid double free on OOM testing

Fix xlconfig channel tests when OOM testing is enabled. TEST: xlconfigtest 32) Xen XL-2-XML Format channel-unix ... OK Test OOM for nalloc=55 ................................................*** Error in `/home/jfehlig/virt/upstream/libvirt/tests/.libs/xlconfigtest': double free or corruption (fasttop): 0x0000000000679550 *** ... (gdb) bt #0 0x00007ffff36875af in raise () from /lib64/libc.so.6 #1 0x00007ffff36889aa in abort () from /lib64/libc.so.6 #2 0x00007ffff36c5150 in __libc_message () from /lib64/libc.so.6 #3 0x00007ffff36cb4f6 in malloc_printerr () from /lib64/libc.so.6 #4 0x00007ffff36cbcee in _int_free () from /lib64/libc.so.6 #5 0x00007ffff782babf in virFree (ptrptr=0x7fffffffdca8) at util/viralloc.c:582 #6 0x000000000042f2f3 in xenParseXLChannel (conf=0x677350, def=0x6815b0) at xenconfig/xen_xl.c:788 #7 0x000000000042f44e in xenParseXL (conf=0x677350, caps=0x6832b0, xmlopt=0x67f6e0) at xenconfig/xen_xl.c:828 #8 0x00000000004105a3 in testCompareFormatXML ( xlcfg=0x6811e0 "/home/jfehlig/virt/upstream/libvirt/tests/xlconfigdata/test-channel-unix.cfg", xml=0x681110 "/home/jfehlig/virt/upstream/libvirt/tests/xlconfigdata/test-channel-unix.xml", replaceVars=false) at xlconfigtest.c:152 When a channel is successfully parsed and its path and name fields assigned from local variables, set the local variables to NULL to prevent a double free on error. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com&gt; --- src/xenconfig/xen_xl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)